64714040

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4159}}^1$

素因数の和:4559

約数の個数: 32

約数和(自身を含む): 146016000

約数和(自身を除く): 81301960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4159, 7780, 8318, 15560, 16636, 20795, 33272, 41590, 83180, 166360, 1617851, 3235702, 6471404, 8089255, 12942808, 16178510, 32357020, 64714040]

約数ペア:

[(1, 64714040), (2, 32357020), (4, 16178510), (5, 12942808), (8, 8089255), (10, 6471404), (20, 3235702), (40, 1617851), (389, 166360), (778, 83180), (1556, 41590), (1945, 33272), (3112, 20795), (3890, 16636), (4159, 15560), (7780, 8318)]