398552220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:697

約数の個数: 216

約数和(自身を含む): 1376837280

約数和(自身を除く): 978285060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 29, 30, 33, 36, 44, 45, 55, 58, 60, 66, 87, 90, 99, 110, 116, 121, 132, 145, 165, 174, 180, 198, 220, 242, 261, 290, 319, 330, 348, 363, 396, 435, 484, 495, 522, 580, 605, 631, 638, 660, 726, 870, 957, 990, 1044, 1089, 1210, 1262, 1276, 1305, 1452, 1595, 1740, 1815, 1893, 1914, 1980, 2178, 2420, 2524, 2610, 2871, 3155, 3190, 3509, 3630, 3786, 3828, 4356, 4785, 5220, 5445, 5679, 5742, 6310, 6380, 6941, 7018, 7260, 7572, 9465, 9570, 10527, 10890, 11358, 11484, 12620, 13882, 14036, 14355, 17545, 18299, 18930, 19140, 20823, 21054, 21780, 22716, 27764, 28395, 28710, 31581, 34705, 35090, 36598, 37860, 41646, 42108, 52635, 54897, 56790, 57420, 62469, 63162, 69410, 70180, 73196, 76351, 83292, 91495, 104115, 105270, 109794, 113580, 124938, 126324, 138820, 152702, 157905, 164691, 182990, 201289, 208230, 210540, 219588, 229053, 249876, 274485, 305404, 312345, 315810, 329382, 365980, 381755, 402578, 416460, 458106, 548970, 603867, 624690, 631620, 658764, 687159, 763510, 805156, 823455, 916212, 1006445, 1097940, 1145265, 1207734, 1249380, 1374318, 1527020, 1646910, 1811601, 2012890, 2214179, 2290530, 2415468, 2748636, 3019335, 3293820, 3435795, 3623202, 4025780, 4428358, 4581060, 6038670, 6642537, 6871590, 7246404, 8856716, 9058005, 11070895, 12077340, 13285074, 13743180, 18116010, 19927611, 22141790, 26570148, 33212685, 36232020, 39855222, 44283580, 66425370, 79710444, 99638055, 132850740, 199276110, 398552220]

約数ペア:

[(1, 398552220), (2, 199276110), (3, 132850740), (4, 99638055), (5, 79710444), (6, 66425370), (9, 44283580), (10, 39855222), (11, 36232020), (12, 33212685), (15, 26570148), (18, 22141790), (20, 19927611), (22, 18116010), (29, 13743180), (30, 13285074), (33, 12077340), (36, 11070895), (44, 9058005), (45, 8856716), (55, 7246404), (58, 6871590), (60, 6642537), (66, 6038670), (87, 4581060), (90, 4428358), (99, 4025780), (110, 3623202), (116, 3435795), (121, 3293820), (132, 3019335), (145, 2748636), (165, 2415468), (174, 2290530), (180, 2214179), (198, 2012890), (220, 1811601), (242, 1646910), (261, 1527020), (290, 1374318), (319, 1249380), (330, 1207734), (348, 1145265), (363, 1097940), (396, 1006445), (435, 916212), (484, 823455), (495, 805156), (522, 763510), (580, 687159), (605, 658764), (631, 631620), (638, 624690), (660, 603867), (726, 548970), (870, 458106), (957, 416460), (990, 402578), (1044, 381755), (1089, 365980), (1210, 329382), (1262, 315810), (1276, 312345), (1305, 305404), (1452, 274485), (1595, 249876), (1740, 229053), (1815, 219588), (1893, 210540), (1914, 208230), (1980, 201289), (2178, 182990), (2420, 164691), (2524, 157905), (2610, 152702), (2871, 138820), (3155, 126324), (3190, 124938), (3509, 113580), (3630, 109794), (3786, 105270), (3828, 104115), (4356, 91495), (4785, 83292), (5220, 76351), (5445, 73196), (5679, 70180), (5742, 69410), (6310, 63162), (6380, 62469), (6941, 57420), (7018, 56790), (7260, 54897), (7572, 52635), (9465, 42108), (9570, 41646), (10527, 37860), (10890, 36598), (11358, 35090), (11484, 34705), (12620, 31581), (13882, 28710), (14036, 28395), (14355, 27764), (17545, 22716), (18299, 21780), (18930, 21054), (19140, 20823)]