201312520

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{18169}}^1$

素因数の和:18457

約数の個数: 32

約数和(自身を含む): 454613400

約数和(自身を除く): 253300880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 11080, 18169, 36338, 72676, 90845, 145352, 181690, 363380, 726760, 5032813, 10065626, 20131252, 25164065, 40262504, 50328130, 100656260, 201312520]

約数ペア:

[(1, 201312520), (2, 100656260), (4, 50328130), (5, 40262504), (8, 25164065), (10, 20131252), (20, 10065626), (40, 5032813), (277, 726760), (554, 363380), (1108, 181690), (1385, 145352), (2216, 90845), (2770, 72676), (5540, 36338), (11080, 18169)]