207859420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{919}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 448842240

約数和(自身を除く): 240982820

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 263, 430, 526, 860, 919, 1052, 1315, 1838, 2630, 3676, 4595, 5260, 9190, 11309, 18380, 22618, 39517, 45236, 56545, 79034, 113090, 158068, 197585, 226180, 241697, 395170, 483394, 790340, 966788, 1208485, 2416970, 4833940, 10392971, 20785942, 41571884, 51964855, 103929710, 207859420]

約数ペア:

[(1, 207859420), (2, 103929710), (4, 51964855), (5, 41571884), (10, 20785942), (20, 10392971), (43, 4833940), (86, 2416970), (172, 1208485), (215, 966788), (263, 790340), (430, 483394), (526, 395170), (860, 241697), (919, 226180), (1052, 197585), (1315, 158068), (1838, 113090), (2630, 79034), (3676, 56545), (4595, 45236), (5260, 39517), (9190, 22618), (11309, 18380)]