128975560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{460627}}^1$

素因数の和:460645

約数の個数: 32

約数和(自身を含む): 331652160

約数和(自身を除く): 202676600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 460627, 921254, 1842508, 2303135, 3224389, 3685016, 4606270, 6448778, 9212540, 12897556, 16121945, 18425080, 25795112, 32243890, 64487780, 128975560]

約数ペア:

[(1, 128975560), (2, 64487780), (4, 32243890), (5, 25795112), (7, 18425080), (8, 16121945), (10, 12897556), (14, 9212540), (20, 6448778), (28, 4606270), (35, 3685016), (40, 3224389), (56, 2303135), (70, 1842508), (140, 921254), (280, 460627)]