291270460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1120271}}^1$

素因数の和:1120293

約数の個数: 24

約数和(自身を含む): 658719936

約数和(自身を除く): 367449476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1120271, 2240542, 4481084, 5601355, 11202710, 14563523, 22405420, 29127046, 58254092, 72817615, 145635230, 291270460]

約数ペア:

[(1, 291270460), (2, 145635230), (4, 72817615), (5, 58254092), (10, 29127046), (13, 22405420), (20, 14563523), (26, 11202710), (52, 5601355), (65, 4481084), (130, 2240542), (260, 1120271)]