189804560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{215687}}^1$

素因数の和:215711

約数の個数: 40

約数和(自身を含む): 481415616

約数和(自身を除く): 291611056

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 215687, 431374, 862748, 1078435, 1725496, 2156870, 2372557, 3450992, 4313740, 4745114, 8627480, 9490228, 11862785, 17254960, 18980456, 23725570, 37960912, 47451140, 94902280, 189804560]

約数ペア:

[(1, 189804560), (2, 94902280), (4, 47451140), (5, 37960912), (8, 23725570), (10, 18980456), (11, 17254960), (16, 11862785), (20, 9490228), (22, 8627480), (40, 4745114), (44, 4313740), (55, 3450992), (80, 2372557), (88, 2156870), (110, 1725496), (176, 1078435), (220, 862748), (440, 431374), (880, 215687)]