636396020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{143981}}^1$

素因数の和:144020

約数の個数: 48

約数和(自身を含む): 1523905488

約数和(自身を除く): 887509468

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 143981, 287962, 575924, 719905, 1439810, 1871753, 2447677, 2879620, 3743506, 4895354, 7487012, 9358765, 9790708, 12238385, 18717530, 24476770, 31819801, 37435060, 48953540, 63639602, 127279204, 159099005, 318198010, 636396020]

約数ペア:

[(1, 636396020), (2, 318198010), (4, 159099005), (5, 127279204), (10, 63639602), (13, 48953540), (17, 37435060), (20, 31819801), (26, 24476770), (34, 18717530), (52, 12238385), (65, 9790708), (68, 9358765), (85, 7487012), (130, 4895354), (170, 3743506), (221, 2879620), (260, 2447677), (340, 1871753), (442, 1439810), (884, 719905), (1105, 575924), (2210, 287962), (4420, 143981)]