8939450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:851

約数の個数: 48

約数和(自身を含む): 18983160

約数和(自身を除く): 10043710

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 325, 425, 442, 650, 809, 850, 1105, 1618, 2210, 4045, 5525, 8090, 10517, 11050, 13753, 20225, 21034, 27506, 40450, 52585, 68765, 105170, 137530, 178789, 262925, 343825, 357578, 525850, 687650, 893945, 1787890, 4469725, 8939450]

約数ペア:

[(1, 8939450), (2, 4469725), (5, 1787890), (10, 893945), (13, 687650), (17, 525850), (25, 357578), (26, 343825), (34, 262925), (50, 178789), (65, 137530), (85, 105170), (130, 68765), (170, 52585), (221, 40450), (325, 27506), (425, 21034), (442, 20225), (650, 13753), (809, 11050), (850, 10517), (1105, 8090), (1618, 5525), (2210, 4045)]