78047884

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{2203}}^1$

素因数の和:2745

約数の個数: 24

約数和(自身を含む): 144961488

約数和(自身を除く): 66913604

約数列:

[1, 2, 4, 17, 34, 68, 521, 1042, 2084, 2203, 4406, 8812, 8857, 17714, 35428, 37451, 74902, 149804, 1147763, 2295526, 4591052, 19511971, 39023942, 78047884]

約数ペア:

[(1, 78047884), (2, 39023942), (4, 19511971), (17, 4591052), (34, 2295526), (68, 1147763), (521, 149804), (1042, 74902), (2084, 37451), (2203, 35428), (4406, 17714), (8812, 8857)]