1285722620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:440

約数の個数: 192

約数和(自身を含む): 3479943936

約数和(自身を除く): 2194221316

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 37, 52, 61, 65, 70, 74, 91, 122, 130, 140, 148, 182, 185, 244, 259, 260, 305, 313, 364, 370, 427, 455, 481, 518, 610, 626, 740, 793, 854, 910, 962, 1036, 1220, 1252, 1295, 1565, 1586, 1708, 1820, 1924, 2135, 2191, 2257, 2405, 2590, 3130, 3172, 3367, 3965, 4069, 4270, 4382, 4514, 4810, 5180, 5551, 6260, 6734, 7930, 8138, 8540, 8764, 9028, 9620, 10955, 11102, 11285, 11581, 13468, 15799, 15860, 16276, 16835, 19093, 20345, 21910, 22204, 22570, 23162, 27755, 28483, 29341, 31598, 33670, 38186, 40690, 43820, 45140, 46324, 55510, 56966, 57905, 58682, 63196, 67340, 76372, 78995, 81067, 81380, 95465, 111020, 113932, 115810, 117364, 133651, 142415, 146705, 150553, 157990, 162134, 190930, 205387, 231620, 248209, 267302, 284830, 293410, 301106, 315980, 324268, 381860, 405335, 410774, 496418, 534604, 569660, 586820, 602212, 668255, 706441, 752765, 810670, 821548, 992836, 1026935, 1053871, 1241045, 1336510, 1412882, 1505530, 1621340, 1737463, 2053870, 2107742, 2482090, 2673020, 2825764, 3011060, 3474926, 3532205, 4107740, 4215484, 4945087, 4964180, 5269355, 6949852, 7064410, 8687315, 9183733, 9890174, 10538710, 14128820, 17374630, 18367466, 19780348, 21077420, 24725435, 34749260, 36734932, 45918665, 49450870, 64286131, 91837330, 98901740, 128572262, 183674660, 257144524, 321430655, 642861310, 1285722620]

約数ペア:

[(1, 1285722620), (2, 642861310), (4, 321430655), (5, 257144524), (7, 183674660), (10, 128572262), (13, 98901740), (14, 91837330), (20, 64286131), (26, 49450870), (28, 45918665), (35, 36734932), (37, 34749260), (52, 24725435), (61, 21077420), (65, 19780348), (70, 18367466), (74, 17374630), (91, 14128820), (122, 10538710), (130, 9890174), (140, 9183733), (148, 8687315), (182, 7064410), (185, 6949852), (244, 5269355), (259, 4964180), (260, 4945087), (305, 4215484), (313, 4107740), (364, 3532205), (370, 3474926), (427, 3011060), (455, 2825764), (481, 2673020), (518, 2482090), (610, 2107742), (626, 2053870), (740, 1737463), (793, 1621340), (854, 1505530), (910, 1412882), (962, 1336510), (1036, 1241045), (1220, 1053871), (1252, 1026935), (1295, 992836), (1565, 821548), (1586, 810670), (1708, 752765), (1820, 706441), (1924, 668255), (2135, 602212), (2191, 586820), (2257, 569660), (2405, 534604), (2590, 496418), (3130, 410774), (3172, 405335), (3367, 381860), (3965, 324268), (4069, 315980), (4270, 301106), (4382, 293410), (4514, 284830), (4810, 267302), (5180, 248209), (5551, 231620), (6260, 205387), (6734, 190930), (7930, 162134), (8138, 157990), (8540, 150553), (8764, 146705), (9028, 142415), (9620, 133651), (10955, 117364), (11102, 115810), (11285, 113932), (11581, 111020), (13468, 95465), (15799, 81380), (15860, 81067), (16276, 78995), (16835, 76372), (19093, 67340), (20345, 63196), (21910, 58682), (22204, 57905), (22570, 56966), (23162, 55510), (27755, 46324), (28483, 45140), (29341, 43820), (31598, 40690), (33670, 38186)]