12520400

素因数分解:

$2^4\times 5^2\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:408

約数の個数: 60

約数和(自身を含む): 30456012

約数和(自身を除く): 17935612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 113, 200, 226, 277, 400, 452, 554, 565, 904, 1108, 1130, 1385, 1808, 2216, 2260, 2770, 2825, 4432, 4520, 5540, 5650, 6925, 9040, 11080, 11300, 13850, 22160, 22600, 27700, 31301, 45200, 55400, 62602, 110800, 125204, 156505, 250408, 313010, 500816, 626020, 782525, 1252040, 1565050, 2504080, 3130100, 6260200, 12520400]

約数ペア:

[(1, 12520400), (2, 6260200), (4, 3130100), (5, 2504080), (8, 1565050), (10, 1252040), (16, 782525), (20, 626020), (25, 500816), (40, 313010), (50, 250408), (80, 156505), (100, 125204), (113, 110800), (200, 62602), (226, 55400), (277, 45200), (400, 31301), (452, 27700), (554, 22600), (565, 22160), (904, 13850), (1108, 11300), (1130, 11080), (1385, 9040), (1808, 6925), (2216, 5650), (2260, 5540), (2770, 4520), (2825, 4432)]