20121615020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15581}}^1\times {\mathrm{4967}}^1$

素因数の和:20570

約数の個数: 48

約数和(自身を含む): 45517889088

約数和(自身を除く): 25396274068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4967, 9934, 15581, 19868, 24835, 31162, 49670, 62324, 64571, 77905, 99340, 129142, 155810, 202553, 258284, 311620, 322855, 405106, 645710, 810212, 1012765, 1291420, 2025530, 4051060, 77390827, 154781654, 309563308, 386954135, 773908270, 1006080751, 1547816540, 2012161502, 4024323004, 5030403755, 10060807510, 20121615020]

約数ペア:

[(1, 20121615020), (2, 10060807510), (4, 5030403755), (5, 4024323004), (10, 2012161502), (13, 1547816540), (20, 1006080751), (26, 773908270), (52, 386954135), (65, 309563308), (130, 154781654), (260, 77390827), (4967, 4051060), (9934, 2025530), (15581, 1291420), (19868, 1012765), (24835, 810212), (31162, 645710), (49670, 405106), (62324, 322855), (64571, 311620), (77905, 258284), (99340, 202553), (129142, 155810)]