989718820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{5591}}^1$

素因数の和:5820

約数の個数: 48

約数和(自身を含む): 2130686208

約数和(自身を除く): 1140967388

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 167, 212, 265, 334, 530, 668, 835, 1060, 1670, 3340, 5591, 8851, 11182, 17702, 22364, 27955, 35404, 44255, 55910, 88510, 111820, 177020, 296323, 592646, 933697, 1185292, 1481615, 1867394, 2963230, 3734788, 4668485, 5926460, 9336970, 18673940, 49485941, 98971882, 197943764, 247429705, 494859410, 989718820]

約数ペア:

[(1, 989718820), (2, 494859410), (4, 247429705), (5, 197943764), (10, 98971882), (20, 49485941), (53, 18673940), (106, 9336970), (167, 5926460), (212, 4668485), (265, 3734788), (334, 2963230), (530, 1867394), (668, 1481615), (835, 1185292), (1060, 933697), (1670, 592646), (3340, 296323), (5591, 177020), (8851, 111820), (11182, 88510), (17702, 55910), (22364, 44255), (27955, 35404)]