128850680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{460181}}^1$

素因数の和:460199

約数の個数: 32

約数和(自身を含む): 331331040

約数和(自身を除く): 202480360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 460181, 920362, 1840724, 2300905, 3221267, 3681448, 4601810, 6442534, 9203620, 12885068, 16106335, 18407240, 25770136, 32212670, 64425340, 128850680]

約数ペア:

[(1, 128850680), (2, 64425340), (4, 32212670), (5, 25770136), (7, 18407240), (8, 16106335), (10, 12885068), (14, 9203620), (20, 6442534), (28, 4601810), (35, 3681448), (40, 3221267), (56, 2300905), (70, 1840724), (140, 920362), (280, 460181)]