1520787920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{240631}}^1$

素因数の和:240723

約数の個数: 40

約数和(自身を含む): 3580604160

約数和(自身を除く): 2059816240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 240631, 481262, 962524, 1203155, 1925048, 2406310, 3850096, 4812620, 9625240, 19009849, 19250480, 38019698, 76039396, 95049245, 152078792, 190098490, 304157584, 380196980, 760393960, 1520787920]

約数ペア:

[(1, 1520787920), (2, 760393960), (4, 380196980), (5, 304157584), (8, 190098490), (10, 152078792), (16, 95049245), (20, 76039396), (40, 38019698), (79, 19250480), (80, 19009849), (158, 9625240), (316, 4812620), (395, 3850096), (632, 2406310), (790, 1925048), (1264, 1203155), (1580, 962524), (3160, 481262), (6320, 240631)]