749206420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{273433}}^1$

素因数の和:273579

約数の個数: 24

約数和(自身を含む): 1584823464

約数和(自身を除く): 835617044

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 273433, 546866, 1093732, 1367165, 2734330, 5468660, 37460321, 74920642, 149841284, 187301605, 374603210, 749206420]

約数ペア:

[(1, 749206420), (2, 374603210), (4, 187301605), (5, 149841284), (10, 74920642), (20, 37460321), (137, 5468660), (274, 2734330), (548, 1367165), (685, 1093732), (1370, 546866), (2740, 273433)]