389968628

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{190787}}^1$

素因数の和:190871

約数の個数: 24

約数和(自身を含む): 790625472

約数和(自身を除く): 400656844

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 190787, 381574, 763148, 1335509, 2671018, 5342036, 13927451, 27854902, 55709804, 97492157, 194984314, 389968628]

約数ペア:

[(1, 389968628), (2, 194984314), (4, 97492157), (7, 55709804), (14, 27854902), (28, 13927451), (73, 5342036), (146, 2671018), (292, 1335509), (511, 763148), (1022, 381574), (2044, 190787)]