66565780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 143216640

約数和(自身を除く): 76650860

約数列:

[1, 2, 4, 5, 10, 20, 73, 127, 146, 254, 292, 359, 365, 508, 635, 718, 730, 1270, 1436, 1460, 1795, 2540, 3590, 7180, 9271, 18542, 26207, 37084, 45593, 46355, 52414, 91186, 92710, 104828, 131035, 182372, 185420, 227965, 262070, 455930, 524140, 911860, 3328289, 6656578, 13313156, 16641445, 33282890, 66565780]

約数ペア:

[(1, 66565780), (2, 33282890), (4, 16641445), (5, 13313156), (10, 6656578), (20, 3328289), (73, 911860), (127, 524140), (146, 455930), (254, 262070), (292, 227965), (359, 185420), (365, 182372), (508, 131035), (635, 104828), (718, 92710), (730, 91186), (1270, 52414), (1436, 46355), (1460, 45593), (1795, 37084), (2540, 26207), (3590, 18542), (7180, 9271)]