428178280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{150767}}^1$

素因数の和:150849

約数の個数: 32

約数和(自身を含む): 976976640

約数和(自身を除く): 548798360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 150767, 301534, 603068, 753835, 1206136, 1507670, 3015340, 6030680, 10704457, 21408914, 42817828, 53522285, 85635656, 107044570, 214089140, 428178280]

約数ペア:

[(1, 428178280), (2, 214089140), (4, 107044570), (5, 85635656), (8, 53522285), (10, 42817828), (20, 21408914), (40, 10704457), (71, 6030680), (142, 3015340), (284, 1507670), (355, 1206136), (568, 753835), (710, 603068), (1420, 301534), (2840, 150767)]