65238920

素因数分解:

$2^3\times 5^1\times {\mathrm{739}}^1\times {\mathrm{2207}}^1$

素因数の和:2957

約数の個数: 32

約数和(自身を含む): 147052800

約数和(自身を除く): 81813880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 739, 1478, 2207, 2956, 3695, 4414, 5912, 7390, 8828, 11035, 14780, 17656, 22070, 29560, 44140, 88280, 1630973, 3261946, 6523892, 8154865, 13047784, 16309730, 32619460, 65238920]

約数ペア:

[(1, 65238920), (2, 32619460), (4, 16309730), (5, 13047784), (8, 8154865), (10, 6523892), (20, 3261946), (40, 1630973), (739, 88280), (1478, 44140), (2207, 29560), (2956, 22070), (3695, 17656), (4414, 14780), (5912, 11035), (7390, 8828)]