20128135390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{190409}}^1$

素因数の和:190489

約数の個数: 48

約数和(自身を含む): 40840660080

約数和(自身を除く): 20712524690

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 961, 1705, 1922, 3410, 4805, 9610, 10571, 21142, 52855, 105710, 190409, 380818, 952045, 1904090, 2094499, 4188998, 5902679, 10472495, 11805358, 20944990, 29513395, 59026790, 64929469, 129858938, 182983049, 324647345, 365966098, 649294690, 914915245, 1829830490, 2012813539, 4025627078, 10064067695, 20128135390]

約数ペア:

[(1, 20128135390), (2, 10064067695), (5, 4025627078), (10, 2012813539), (11, 1829830490), (22, 914915245), (31, 649294690), (55, 365966098), (62, 324647345), (110, 182983049), (155, 129858938), (310, 64929469), (341, 59026790), (682, 29513395), (961, 20944990), (1705, 11805358), (1922, 10472495), (3410, 5902679), (4805, 4188998), (9610, 2094499), (10571, 1904090), (21142, 952045), (52855, 380818), (105710, 190409)]