640645380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:219

約数の個数: 288

約数和(自身を含む): 2151152640

約数和(自身を除く): 1510507260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 31, 36, 37, 45, 58, 60, 62, 74, 87, 90, 93, 107, 111, 116, 124, 145, 148, 155, 174, 180, 185, 186, 214, 222, 261, 279, 290, 310, 321, 333, 348, 370, 372, 428, 435, 444, 465, 522, 535, 555, 558, 580, 620, 642, 666, 740, 870, 899, 930, 963, 1044, 1070, 1073, 1110, 1116, 1147, 1284, 1305, 1332, 1395, 1605, 1665, 1740, 1798, 1860, 1926, 2140, 2146, 2220, 2294, 2610, 2697, 2790, 3103, 3210, 3219, 3317, 3330, 3441, 3596, 3852, 3959, 4292, 4495, 4588, 4815, 5220, 5365, 5394, 5580, 5735, 6206, 6420, 6438, 6634, 6660, 6882, 7918, 8091, 8990, 9309, 9630, 9657, 9951, 10323, 10730, 10788, 11470, 11877, 12412, 12876, 13268, 13485, 13764, 15515, 15836, 16095, 16182, 16585, 17205, 17980, 18618, 19260, 19314, 19795, 19902, 20646, 21460, 22940, 23754, 26970, 27927, 29853, 31030, 32190, 32364, 33170, 33263, 34410, 35631, 37236, 38628, 39590, 39804, 40455, 41292, 46545, 47508, 48285, 49755, 51615, 53940, 55854, 59385, 59706, 62060, 64380, 66340, 66526, 68820, 71262, 79180, 80910, 93090, 96193, 96570, 99510, 99789, 103230, 111708, 114811, 118770, 119412, 122729, 133052, 139635, 142524, 149265, 161820, 166315, 178155, 186180, 192386, 193140, 199020, 199578, 206460, 229622, 237540, 245458, 279270, 288579, 298530, 299367, 332630, 344433, 356310, 368187, 384772, 399156, 459244, 480965, 490916, 498945, 558540, 574055, 577158, 597060, 598734, 613645, 665260, 688866, 712620, 736374, 865737, 961930, 997890, 1033299, 1104561, 1148110, 1154316, 1197468, 1227290, 1377732, 1442895, 1472748, 1496835, 1722165, 1731474, 1840935, 1923860, 1995780, 2066598, 2209122, 2296220, 2454580, 2885790, 2993670, 3444330, 3462948, 3559141, 3681870, 4133196, 4328685, 4418244, 5166495, 5522805, 5771580, 5987340, 6888660, 7118282, 7363740, 8657370, 10332990, 10677423, 11045610, 14236564, 17314740, 17795705, 20665980, 21354846, 22091220, 32032269, 35591410, 42709692, 53387115, 64064538, 71182820, 106774230, 128129076, 160161345, 213548460, 320322690, 640645380]

約数ペア:

[(1, 640645380), (2, 320322690), (3, 213548460), (4, 160161345), (5, 128129076), (6, 106774230), (9, 71182820), (10, 64064538), (12, 53387115), (15, 42709692), (18, 35591410), (20, 32032269), (29, 22091220), (30, 21354846), (31, 20665980), (36, 17795705), (37, 17314740), (45, 14236564), (58, 11045610), (60, 10677423), (62, 10332990), (74, 8657370), (87, 7363740), (90, 7118282), (93, 6888660), (107, 5987340), (111, 5771580), (116, 5522805), (124, 5166495), (145, 4418244), (148, 4328685), (155, 4133196), (174, 3681870), (180, 3559141), (185, 3462948), (186, 3444330), (214, 2993670), (222, 2885790), (261, 2454580), (279, 2296220), (290, 2209122), (310, 2066598), (321, 1995780), (333, 1923860), (348, 1840935), (370, 1731474), (372, 1722165), (428, 1496835), (435, 1472748), (444, 1442895), (465, 1377732), (522, 1227290), (535, 1197468), (555, 1154316), (558, 1148110), (580, 1104561), (620, 1033299), (642, 997890), (666, 961930), (740, 865737), (870, 736374), (899, 712620), (930, 688866), (963, 665260), (1044, 613645), (1070, 598734), (1073, 597060), (1110, 577158), (1116, 574055), (1147, 558540), (1284, 498945), (1305, 490916), (1332, 480965), (1395, 459244), (1605, 399156), (1665, 384772), (1740, 368187), (1798, 356310), (1860, 344433), (1926, 332630), (2140, 299367), (2146, 298530), (2220, 288579), (2294, 279270), (2610, 245458), (2697, 237540), (2790, 229622), (3103, 206460), (3210, 199578), (3219, 199020), (3317, 193140), (3330, 192386), (3441, 186180), (3596, 178155), (3852, 166315), (3959, 161820), (4292, 149265), (4495, 142524), (4588, 139635), (4815, 133052), (5220, 122729), (5365, 119412), (5394, 118770), (5580, 114811), (5735, 111708), (6206, 103230), (6420, 99789), (6438, 99510), (6634, 96570), (6660, 96193), (6882, 93090), (7918, 80910), (8091, 79180), (8990, 71262), (9309, 68820), (9630, 66526), (9657, 66340), (9951, 64380), (10323, 62060), (10730, 59706), (10788, 59385), (11470, 55854), (11877, 53940), (12412, 51615), (12876, 49755), (13268, 48285), (13485, 47508), (13764, 46545), (15515, 41292), (15836, 40455), (16095, 39804), (16182, 39590), (16585, 38628), (17205, 37236), (17980, 35631), (18618, 34410), (19260, 33263), (19314, 33170), (19795, 32364), (19902, 32190), (20646, 31030), (21460, 29853), (22940, 27927), (23754, 26970)]