20254160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8167}}^1$

素因数の和:8211

約数の個数: 40

約数和(自身を含む): 48615936

約数和(自身を除く): 28361776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8167, 16334, 32668, 40835, 65336, 81670, 130672, 163340, 253177, 326680, 506354, 653360, 1012708, 1265885, 2025416, 2531770, 4050832, 5063540, 10127080, 20254160]

約数ペア:

[(1, 20254160), (2, 10127080), (4, 5063540), (5, 4050832), (8, 2531770), (10, 2025416), (16, 1265885), (20, 1012708), (31, 653360), (40, 506354), (62, 326680), (80, 253177), (124, 163340), (155, 130672), (248, 81670), (310, 65336), (496, 40835), (620, 32668), (1240, 16334), (2480, 8167)]