80853580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{130409}}^1$

素因数の和:130449

約数の個数: 24

約数和(自身を含む): 175271040

約数和(自身を除く): 94417460

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 130409, 260818, 521636, 652045, 1304090, 2608180, 4042679, 8085358, 16170716, 20213395, 40426790, 80853580]

約数ペア:

[(1, 80853580), (2, 40426790), (4, 20213395), (5, 16170716), (10, 8085358), (20, 4042679), (31, 2608180), (62, 1304090), (124, 652045), (155, 521636), (310, 260818), (620, 130409)]