64996280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{22259}}^1$

素因数の和:22343

約数の個数: 32

約数和(自身を含む): 148251600

約数和(自身を除く): 83255320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 22259, 44518, 89036, 111295, 178072, 222590, 445180, 890360, 1624907, 3249814, 6499628, 8124535, 12999256, 16249070, 32498140, 64996280]

約数ペア:

[(1, 64996280), (2, 32498140), (4, 16249070), (5, 12999256), (8, 8124535), (10, 6499628), (20, 3249814), (40, 1624907), (73, 890360), (146, 445180), (292, 222590), (365, 178072), (584, 111295), (730, 89036), (1460, 44518), (2920, 22259)]