259209220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{2521}}^1$

素因数の和:2680

約数の個数: 48

約数和(自身を含む): 560549808

約数和(自身を除く): 301340588

約数列:

[1, 2, 4, 5, 10, 20, 53, 97, 106, 194, 212, 265, 388, 485, 530, 970, 1060, 1940, 2521, 5042, 5141, 10084, 10282, 12605, 20564, 25210, 25705, 50420, 51410, 102820, 133613, 244537, 267226, 489074, 534452, 668065, 978148, 1222685, 1336130, 2445370, 2672260, 4890740, 12960461, 25920922, 51841844, 64802305, 129604610, 259209220]

約数ペア:

[(1, 259209220), (2, 129604610), (4, 64802305), (5, 51841844), (10, 25920922), (20, 12960461), (53, 4890740), (97, 2672260), (106, 2445370), (194, 1336130), (212, 1222685), (265, 978148), (388, 668065), (485, 534452), (530, 489074), (970, 267226), (1060, 244537), (1940, 133613), (2521, 102820), (5042, 51410), (5141, 50420), (10084, 25705), (10282, 25210), (12605, 20564)]