207420730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{21187}}^1$

素因数の和:21294

約数の個数: 32

約数和(自身を含む): 411894720

約数和(自身を除く): 204473990

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 21187, 42374, 105935, 211870, 233057, 466114, 1165285, 1885643, 2330570, 3771286, 9428215, 18856430, 20742073, 41484146, 103710365, 207420730]

約数ペア:

[(1, 207420730), (2, 103710365), (5, 41484146), (10, 20742073), (11, 18856430), (22, 9428215), (55, 3771286), (89, 2330570), (110, 1885643), (178, 1165285), (445, 466114), (890, 233057), (979, 211870), (1958, 105935), (4895, 42374), (9790, 21187)]