85456780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{72421}}^1$

素因数の和:72489

約数の個数: 24

約数和(自身を含む): 182503440

約数和(自身を除く): 97046660

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 72421, 144842, 289684, 362105, 724210, 1448420, 4272839, 8545678, 17091356, 21364195, 42728390, 85456780]

約数ペア:

[(1, 85456780), (2, 42728390), (4, 21364195), (5, 17091356), (10, 8545678), (20, 4272839), (59, 1448420), (118, 724210), (236, 362105), (295, 289684), (590, 144842), (1180, 72421)]