90186380

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{23609}}^1$

素因数の和:23809

約数の個数: 24

約数和(自身を含む): 190391040

約数和(自身を除く): 100204660

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 23609, 47218, 94436, 118045, 236090, 472180, 4509319, 9018638, 18037276, 22546595, 45093190, 90186380]

約数ペア:

[(1, 90186380), (2, 45093190), (4, 22546595), (5, 18037276), (10, 9018638), (20, 4509319), (191, 472180), (382, 236090), (764, 118045), (955, 94436), (1910, 47218), (3820, 23609)]