890475920

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{42323}}^1$

素因数の和:42599

約数の個数: 40

約数和(自身を含む): 2078277696

約数和(自身を除く): 1187801776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 4208, 5260, 10520, 21040, 42323, 84646, 169292, 211615, 338584, 423230, 677168, 846460, 1692920, 3385840, 11130949, 22261898, 44523796, 55654745, 89047592, 111309490, 178095184, 222618980, 445237960, 890475920]

約数ペア:

[(1, 890475920), (2, 445237960), (4, 222618980), (5, 178095184), (8, 111309490), (10, 89047592), (16, 55654745), (20, 44523796), (40, 22261898), (80, 11130949), (263, 3385840), (526, 1692920), (1052, 846460), (1315, 677168), (2104, 423230), (2630, 338584), (4208, 211615), (5260, 169292), (10520, 84646), (21040, 42323)]