220631920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{19841}}^1$

素因数の和:19993

約数の個数: 40

約数和(自身を含む): 516685680

約数和(自身を除く): 296053760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 19841, 39682, 79364, 99205, 158728, 198410, 317456, 396820, 793640, 1587280, 2757899, 5515798, 11031596, 13789495, 22063192, 27578990, 44126384, 55157980, 110315960, 220631920]

約数ペア:

[(1, 220631920), (2, 110315960), (4, 55157980), (5, 44126384), (8, 27578990), (10, 22063192), (16, 13789495), (20, 11031596), (40, 5515798), (80, 2757899), (139, 1587280), (278, 793640), (556, 396820), (695, 317456), (1112, 198410), (1390, 158728), (2224, 99205), (2780, 79364), (5560, 39682), (11120, 19841)]