129912800

素因数分解:

$2^5\times 5^2\times {\mathrm{162391}}^1$

素因数の和:162411

約数の個数: 36

約数和(自身を含む): 317151576

約数和(自身を除く): 187238776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 162391, 324782, 649564, 811955, 1299128, 1623910, 2598256, 3247820, 4059775, 5196512, 6495640, 8119550, 12991280, 16239100, 25982560, 32478200, 64956400, 129912800]

約数ペア:

[(1, 129912800), (2, 64956400), (4, 32478200), (5, 25982560), (8, 16239100), (10, 12991280), (16, 8119550), (20, 6495640), (25, 5196512), (32, 4059775), (40, 3247820), (50, 2598256), (80, 1623910), (100, 1299128), (160, 811955), (200, 649564), (400, 324782), (800, 162391)]