25080040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8831}}^1$

素因数の和:8913

約数の個数: 32

約数和(自身を含む): 57231360

約数和(自身を除く): 32151320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 8831, 17662, 35324, 44155, 70648, 88310, 176620, 353240, 627001, 1254002, 2508004, 3135005, 5016008, 6270010, 12540020, 25080040]

約数ペア:

[(1, 25080040), (2, 12540020), (4, 6270010), (5, 5016008), (8, 3135005), (10, 2508004), (20, 1254002), (40, 627001), (71, 353240), (142, 176620), (284, 88310), (355, 70648), (568, 44155), (710, 35324), (1420, 17662), (2840, 8831)]