20603720

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3457}}^1$

素因数の和:3617

約数の個数: 32

約数和(自身を含む): 46683000

約数和(自身を除く): 26079280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3457, 5960, 6914, 13828, 17285, 27656, 34570, 69140, 138280, 515093, 1030186, 2060372, 2575465, 4120744, 5150930, 10301860, 20603720]

約数ペア:

[(1, 20603720), (2, 10301860), (4, 5150930), (5, 4120744), (8, 2575465), (10, 2060372), (20, 1030186), (40, 515093), (149, 138280), (298, 69140), (596, 34570), (745, 27656), (1192, 17285), (1490, 13828), (2980, 6914), (3457, 5960)]