2731540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 6652800

約数和(自身を除く): 3921260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 179, 218, 358, 436, 545, 716, 763, 895, 1090, 1253, 1526, 1790, 2180, 2506, 3052, 3580, 3815, 5012, 6265, 7630, 12530, 15260, 19511, 25060, 39022, 78044, 97555, 136577, 195110, 273154, 390220, 546308, 682885, 1365770, 2731540]

約数ペア:

[(1, 2731540), (2, 1365770), (4, 682885), (5, 546308), (7, 390220), (10, 273154), (14, 195110), (20, 136577), (28, 97555), (35, 78044), (70, 39022), (109, 25060), (140, 19511), (179, 15260), (218, 12530), (358, 7630), (436, 6265), (545, 5012), (716, 3815), (763, 3580), (895, 3052), (1090, 2506), (1253, 2180), (1526, 1790)]