489272360

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{172279}}^1$

素因数の和:172361

約数の個数: 32

約数和(自身を含む): 1116374400

約数和(自身を除く): 627102040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 172279, 344558, 689116, 861395, 1378232, 1722790, 3445580, 6891160, 12231809, 24463618, 48927236, 61159045, 97854472, 122318090, 244636180, 489272360]

約数ペア:

[(1, 489272360), (2, 244636180), (4, 122318090), (5, 97854472), (8, 61159045), (10, 48927236), (20, 24463618), (40, 12231809), (71, 6891160), (142, 3445580), (284, 1722790), (355, 1378232), (568, 861395), (710, 689116), (1420, 344558), (2840, 172279)]