80129980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{572357}}^1$

素因数の和:572373

約数の個数: 24

約数和(自身を含む): 192312288

約数和(自身を除く): 112182308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 572357, 1144714, 2289428, 2861785, 4006499, 5723570, 8012998, 11447140, 16025996, 20032495, 40064990, 80129980]

約数ペア:

[(1, 80129980), (2, 40064990), (4, 20032495), (5, 16025996), (7, 11447140), (10, 8012998), (14, 5723570), (20, 4006499), (28, 2861785), (35, 2289428), (70, 1144714), (140, 572357)]