397264415

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{541}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 518394816

約数和(自身を除く): 121130401

約数列:

[1, 5, 17, 53, 85, 163, 265, 541, 815, 901, 2705, 2771, 4505, 8639, 9197, 13855, 28673, 43195, 45985, 88183, 143365, 146863, 440915, 487441, 734315, 1499111, 2437205, 4673699, 7495555, 23368495, 79452883, 397264415]

約数ペア:

[(1, 397264415), (5, 79452883), (17, 23368495), (53, 7495555), (85, 4673699), (163, 2437205), (265, 1499111), (541, 734315), (815, 487441), (901, 440915), (2705, 146863), (2771, 143365), (4505, 88183), (8639, 45985), (9197, 43195), (13855, 28673)]