20164804905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{983}}^1\times {\mathrm{2473}}^1$

素因数の和:3550

約数の個数: 64

約数和(自身を含む): 37392629760

約数和(自身を除く): 17227824855

約数列:

[1, 3, 5, 7, 15, 21, 35, 79, 105, 237, 395, 553, 983, 1185, 1659, 2473, 2765, 2949, 4915, 6881, 7419, 8295, 12365, 14745, 17311, 20643, 34405, 37095, 51933, 77657, 86555, 103215, 195367, 232971, 259665, 388285, 543599, 586101, 976835, 1164855, 1367569, 1630797, 2430959, 2717995, 2930505, 4102707, 6837845, 7292877, 8153985, 12154795, 17016713, 20513535, 36464385, 51050139, 85083565, 192045761, 255250695, 576137283, 960228805, 1344320327, 2880686415, 4032960981, 6721601635, 20164804905]

約数ペア:

[(1, 20164804905), (3, 6721601635), (5, 4032960981), (7, 2880686415), (15, 1344320327), (21, 960228805), (35, 576137283), (79, 255250695), (105, 192045761), (237, 85083565), (395, 51050139), (553, 36464385), (983, 20513535), (1185, 17016713), (1659, 12154795), (2473, 8153985), (2765, 7292877), (2949, 6837845), (4915, 4102707), (6881, 2930505), (7419, 2717995), (8295, 2430959), (12365, 1630797), (14745, 1367569), (17311, 1164855), (20643, 976835), (34405, 586101), (37095, 543599), (51933, 388285), (77657, 259665), (86555, 232971), (103215, 195367)]