240168890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{4517}}^1$

素因数の和:4946

約数の個数: 32

約数和(自身を含む): 466799760

約数和(自身を除く): 226630870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 409, 818, 2045, 4090, 4517, 5317, 9034, 10634, 22585, 26585, 45170, 53170, 58721, 117442, 293605, 587210, 1847453, 3694906, 9237265, 18474530, 24016889, 48033778, 120084445, 240168890]

約数ペア:

[(1, 240168890), (2, 120084445), (5, 48033778), (10, 24016889), (13, 18474530), (26, 9237265), (65, 3694906), (130, 1847453), (409, 587210), (818, 293605), (2045, 117442), (4090, 58721), (4517, 53170), (5317, 45170), (9034, 26585), (10634, 22585)]