254139080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{488729}}^1$

素因数の和:488753

約数の個数: 32

約数和(自身を含む): 615799800

約数和(自身を除く): 361660720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 488729, 977458, 1954916, 2443645, 3909832, 4887290, 6353477, 9774580, 12706954, 19549160, 25413908, 31767385, 50827816, 63534770, 127069540, 254139080]

約数ペア:

[(1, 254139080), (2, 127069540), (4, 63534770), (5, 50827816), (8, 31767385), (10, 25413908), (13, 19549160), (20, 12706954), (26, 9774580), (40, 6353477), (52, 4887290), (65, 3909832), (104, 2443645), (130, 1954916), (260, 977458), (520, 488729)]