21031626250

素因数分解:

$2^1\times 5^4\times {\mathrm{1861}}^1\times {\mathrm{9041}}^1$

素因数の和:10924

約数の個数: 40

約数和(自身を含む): 39447225972

約数和(自身を除く): 18415599722

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 1861, 3722, 9041, 9305, 18082, 18610, 45205, 46525, 90410, 93050, 226025, 232625, 452050, 465250, 1130125, 1163125, 2260250, 2326250, 5650625, 11301250, 16825301, 33650602, 84126505, 168253010, 420632525, 841265050, 2103162625, 4206325250, 10515813125, 21031626250]

約数ペア:

[(1, 21031626250), (2, 10515813125), (5, 4206325250), (10, 2103162625), (25, 841265050), (50, 420632525), (125, 168253010), (250, 84126505), (625, 33650602), (1250, 16825301), (1861, 11301250), (3722, 5650625), (9041, 2326250), (9305, 2260250), (18082, 1163125), (18610, 1130125), (45205, 465250), (46525, 452050), (90410, 232625), (93050, 226025)]