23111560

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1109}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 52147800

約数和(自身を除く): 29036240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 1109, 2084, 2218, 2605, 4168, 4436, 5210, 5545, 8872, 10420, 11090, 20840, 22180, 44360, 577789, 1155578, 2311156, 2888945, 4622312, 5777890, 11555780, 23111560]

約数ペア:

[(1, 23111560), (2, 11555780), (4, 5777890), (5, 4622312), (8, 2888945), (10, 2311156), (20, 1155578), (40, 577789), (521, 44360), (1042, 22180), (1109, 20840), (2084, 11090), (2218, 10420), (2605, 8872), (4168, 5545), (4436, 5210)]