90431920

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{8629}}^1$

素因数の和:8773

約数の個数: 40

約数和(自身を含む): 211883760

約数和(自身を除く): 121451840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 8629, 10480, 17258, 34516, 43145, 69032, 86290, 138064, 172580, 345160, 690320, 1130399, 2260798, 4521596, 5651995, 9043192, 11303990, 18086384, 22607980, 45215960, 90431920]

約数ペア:

[(1, 90431920), (2, 45215960), (4, 22607980), (5, 18086384), (8, 11303990), (10, 9043192), (16, 5651995), (20, 4521596), (40, 2260798), (80, 1130399), (131, 690320), (262, 345160), (524, 172580), (655, 138064), (1048, 86290), (1310, 69032), (2096, 43145), (2620, 34516), (5240, 17258), (8629, 10480)]