87620680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{312931}}^1$

素因数の和:312949

約数の個数: 32

約数和(自身を含む): 225311040

約数和(自身を除く): 137690360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 312931, 625862, 1251724, 1564655, 2190517, 2503448, 3129310, 4381034, 6258620, 8762068, 10952585, 12517240, 17524136, 21905170, 43810340, 87620680]

約数ペア:

[(1, 87620680), (2, 43810340), (4, 21905170), (5, 17524136), (7, 12517240), (8, 10952585), (10, 8762068), (14, 6258620), (20, 4381034), (28, 3129310), (35, 2503448), (40, 2190517), (56, 1564655), (70, 1251724), (140, 625862), (280, 312931)]