40274390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23831}}^1$

素因数の和:23864

約数の個数: 24

約数和(自身を含む): 78502608

約数和(自身を除く): 38228218

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 23831, 47662, 119155, 238310, 309803, 619606, 1549015, 3098030, 4027439, 8054878, 20137195, 40274390]

約数ペア:

[(1, 40274390), (2, 20137195), (5, 8054878), (10, 4027439), (13, 3098030), (26, 1549015), (65, 619606), (130, 309803), (169, 238310), (338, 119155), (845, 47662), (1690, 23831)]