89178980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{887}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 204978816

約数和(自身を除く): 115799836

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 457, 887, 914, 1774, 1828, 2285, 3548, 4435, 4570, 5027, 8870, 9140, 9757, 10054, 17740, 19514, 20108, 25135, 39028, 48785, 50270, 97570, 100540, 195140, 405359, 810718, 1621436, 2026795, 4053590, 4458949, 8107180, 8917898, 17835796, 22294745, 44589490, 89178980]

約数ペア:

[(1, 89178980), (2, 44589490), (4, 22294745), (5, 17835796), (10, 8917898), (11, 8107180), (20, 4458949), (22, 4053590), (44, 2026795), (55, 1621436), (110, 810718), (220, 405359), (457, 195140), (887, 100540), (914, 97570), (1774, 50270), (1828, 48785), (2285, 39028), (3548, 25135), (4435, 20108), (4570, 19514), (5027, 17740), (8870, 10054), (9140, 9757)]