64628380

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 138640320

約数和(自身を除く): 74011940

約数列:

[1, 2, 4, 5, 10, 20, 103, 137, 206, 229, 274, 412, 458, 515, 548, 685, 916, 1030, 1145, 1370, 2060, 2290, 2740, 4580, 14111, 23587, 28222, 31373, 47174, 56444, 62746, 70555, 94348, 117935, 125492, 141110, 156865, 235870, 282220, 313730, 471740, 627460, 3231419, 6462838, 12925676, 16157095, 32314190, 64628380]

約数ペア:

[(1, 64628380), (2, 32314190), (4, 16157095), (5, 12925676), (10, 6462838), (20, 3231419), (103, 627460), (137, 471740), (206, 313730), (229, 282220), (274, 235870), (412, 156865), (458, 141110), (515, 125492), (548, 117935), (685, 94348), (916, 70555), (1030, 62746), (1145, 56444), (1370, 47174), (2060, 31373), (2290, 28222), (2740, 23587), (4580, 14111)]