1992520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 4534200

約数和(自身を除く): 2541680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 457, 545, 872, 914, 1090, 1828, 2180, 2285, 3656, 4360, 4570, 9140, 18280, 49813, 99626, 199252, 249065, 398504, 498130, 996260, 1992520]

約数ペア:

[(1, 1992520), (2, 996260), (4, 498130), (5, 398504), (8, 249065), (10, 199252), (20, 99626), (40, 49813), (109, 18280), (218, 9140), (436, 4570), (457, 4360), (545, 3656), (872, 2285), (914, 2180), (1090, 1828)]