20854576510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{52999}}^1$

素因数の和:53153

約数の個数: 48

約数和(自身を含む): 39982140000

約数和(自身を除く): 19127563490

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 361, 545, 722, 1090, 1805, 2071, 3610, 4142, 10355, 20710, 39349, 52999, 78698, 105998, 196745, 264995, 393490, 529990, 1006981, 2013962, 5034905, 5776891, 10069810, 11553782, 19132639, 28884455, 38265278, 57768910, 95663195, 109760929, 191326390, 219521858, 548804645, 1097609290, 2085457651, 4170915302, 10427288255, 20854576510]

約数ペア:

[(1, 20854576510), (2, 10427288255), (5, 4170915302), (10, 2085457651), (19, 1097609290), (38, 548804645), (95, 219521858), (109, 191326390), (190, 109760929), (218, 95663195), (361, 57768910), (545, 38265278), (722, 28884455), (1090, 19132639), (1805, 11553782), (2071, 10069810), (3610, 5776891), (4142, 5034905), (10355, 2013962), (20710, 1006981), (39349, 529990), (52999, 393490), (78698, 264995), (105998, 196745)]