128525980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{14249}}^1$

素因数の和:14310

約数の個数: 48

約数和(自身を含む): 301644000

約数和(自身を除く): 173118020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 14249, 28498, 56996, 71245, 142490, 156739, 284980, 313478, 584209, 626956, 783695, 1168418, 1567390, 2336836, 2921045, 3134780, 5842090, 6426299, 11684180, 12852598, 25705196, 32131495, 64262990, 128525980]

約数ペア:

[(1, 128525980), (2, 64262990), (4, 32131495), (5, 25705196), (10, 12852598), (11, 11684180), (20, 6426299), (22, 5842090), (41, 3134780), (44, 2921045), (55, 2336836), (82, 1567390), (110, 1168418), (164, 783695), (205, 626956), (220, 584209), (410, 313478), (451, 284980), (820, 156739), (902, 142490), (1804, 71245), (2255, 56996), (4510, 28498), (9020, 14249)]