664840124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{345551}}^1$

素因数の和:345605

約数の個数: 24

約数和(自身を含む): 1286835648

約数和(自身を除く): 621995524

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 345551, 691102, 1382204, 4492163, 8984326, 12785387, 17968652, 25570774, 51141548, 166210031, 332420062, 664840124]

約数ペア:

[(1, 664840124), (2, 332420062), (4, 166210031), (13, 51141548), (26, 25570774), (37, 17968652), (52, 12785387), (74, 8984326), (148, 4492163), (481, 1382204), (962, 691102), (1924, 345551)]