20868460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54917}}^1$

素因数の和:54945

約数の個数: 24

約数和(自身を含む): 46131120

約数和(自身を除く): 25262660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54917, 109834, 219668, 274585, 549170, 1043423, 1098340, 2086846, 4173692, 5217115, 10434230, 20868460]

約数ペア:

[(1, 20868460), (2, 10434230), (4, 5217115), (5, 4173692), (10, 2086846), (19, 1098340), (20, 1043423), (38, 549170), (76, 274585), (95, 219668), (190, 109834), (380, 54917)]