20127354620

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{499}}^1\times {\mathrm{10559}}^1$

素因数の和:11258

約数の個数: 48

約数和(自身を含む): 42577920000

約数和(自身を除く): 22450565380

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 499, 764, 955, 998, 1910, 1996, 2495, 3820, 4990, 9980, 10559, 21118, 42236, 52795, 95309, 105590, 190618, 211180, 381236, 476545, 953090, 1906180, 2016769, 4033538, 5268941, 8067076, 10083845, 10537882, 20167690, 21075764, 26344705, 40335380, 52689410, 105378820, 1006367731, 2012735462, 4025470924, 5031838655, 10063677310, 20127354620]

約数ペア:

[(1, 20127354620), (2, 10063677310), (4, 5031838655), (5, 4025470924), (10, 2012735462), (20, 1006367731), (191, 105378820), (382, 52689410), (499, 40335380), (764, 26344705), (955, 21075764), (998, 20167690), (1910, 10537882), (1996, 10083845), (2495, 8067076), (3820, 5268941), (4990, 4033538), (9980, 2016769), (10559, 1906180), (21118, 953090), (42236, 476545), (52795, 381236), (95309, 211180), (105590, 190618)]