213888520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{49057}}^1$

素因数の和:49177

約数の個数: 32

約数和(自身を含む): 485674200

約数和(自身を除く): 271785680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 49057, 98114, 196228, 245285, 392456, 490570, 981140, 1962280, 5347213, 10694426, 21388852, 26736065, 42777704, 53472130, 106944260, 213888520]

約数ペア:

[(1, 213888520), (2, 106944260), (4, 53472130), (5, 42777704), (8, 26736065), (10, 21388852), (20, 10694426), (40, 5347213), (109, 1962280), (218, 981140), (436, 490570), (545, 392456), (872, 245285), (1090, 196228), (2180, 98114), (4360, 49057)]