78487984

素因数分解:

$2^4\times {\mathrm{557}}^1\times {\mathrm{8807}}^1$

素因数の和:9372

約数の個数: 20

約数和(自身を含む): 152360784

約数和(自身を除く): 73872800

約数列:

[1, 2, 4, 8, 16, 557, 1114, 2228, 4456, 8807, 8912, 17614, 35228, 70456, 140912, 4905499, 9810998, 19621996, 39243992, 78487984]

約数ペア:

[(1, 78487984), (2, 39243992), (4, 19621996), (8, 9810998), (16, 4905499), (557, 140912), (1114, 70456), (2228, 35228), (4456, 17614), (8807, 8912)]