205416380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{790063}}^1$

素因数の和:790085

約数の個数: 24

約数和(自身を含む): 464557632

約数和(自身を除く): 259141252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 790063, 1580126, 3160252, 3950315, 7900630, 10270819, 15801260, 20541638, 41083276, 51354095, 102708190, 205416380]

約数ペア:

[(1, 205416380), (2, 102708190), (4, 51354095), (5, 41083276), (10, 20541638), (13, 15801260), (20, 10270819), (26, 7900630), (52, 3950315), (65, 3160252), (130, 1580126), (260, 790063)]