20512073420

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{823}}^1\times {\mathrm{4007}}^1$

素因数の和:5150

約数の個数: 48

約数和(自身を含む): 43277165568

約数和(自身を除く): 22765092148

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 823, 1244, 1555, 1646, 3110, 3292, 4007, 4115, 6220, 8014, 8230, 16028, 16460, 20035, 40070, 80140, 255953, 511906, 1023812, 1246177, 1279765, 2492354, 2559530, 3297761, 4984708, 5119060, 6230885, 6595522, 12461770, 13191044, 16488805, 24923540, 32977610, 65955220, 1025603671, 2051207342, 4102414684, 5128018355, 10256036710, 20512073420]

約数ペア:

[(1, 20512073420), (2, 10256036710), (4, 5128018355), (5, 4102414684), (10, 2051207342), (20, 1025603671), (311, 65955220), (622, 32977610), (823, 24923540), (1244, 16488805), (1555, 13191044), (1646, 12461770), (3110, 6595522), (3292, 6230885), (4007, 5119060), (4115, 4984708), (6220, 3297761), (8014, 2559530), (8230, 2492354), (16028, 1279765), (16460, 1246177), (20035, 1023812), (40070, 511906), (80140, 255953)]