128297960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{458207}}^1$

素因数の和:458225

約数の個数: 32

約数和(自身を含む): 329909760

約数和(自身を除く): 201611800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 458207, 916414, 1832828, 2291035, 3207449, 3665656, 4582070, 6414898, 9164140, 12829796, 16037245, 18328280, 25659592, 32074490, 64148980, 128297960]

約数ペア:

[(1, 128297960), (2, 64148980), (4, 32074490), (5, 25659592), (7, 18328280), (8, 16037245), (10, 12829796), (14, 9164140), (20, 6414898), (28, 4582070), (35, 3665656), (40, 3207449), (56, 2291035), (70, 1832828), (140, 916414), (280, 458207)]