813045908

素因数分解:

$2^2\times {\mathrm{41}}^2\times {\mathrm{120917}}^1$

素因数の和:121003

約数の個数: 18

約数和(自身を含む): 1458391998

約数和(自身を除く): 645346090

約数列:

[1, 2, 4, 41, 82, 164, 1681, 3362, 6724, 120917, 241834, 483668, 4957597, 9915194, 19830388, 203261477, 406522954, 813045908]

約数ペア:

[(1, 813045908), (2, 406522954), (4, 203261477), (41, 19830388), (82, 9915194), (164, 4957597), (1681, 483668), (3362, 241834), (6724, 120917)]