551740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{563}}^1$

素因数の和:586

約数の個数: 36

約数和(自身を含む): 1350216

約数和(自身を除く): 798476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 563, 980, 1126, 2252, 2815, 3941, 5630, 7882, 11260, 15764, 19705, 27587, 39410, 55174, 78820, 110348, 137935, 275870, 551740]

約数ペア:

[(1, 551740), (2, 275870), (4, 137935), (5, 110348), (7, 78820), (10, 55174), (14, 39410), (20, 27587), (28, 19705), (35, 15764), (49, 11260), (70, 7882), (98, 5630), (140, 3941), (196, 2815), (245, 2252), (490, 1126), (563, 980)]