1520242420

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{554833}}^1$

素因数の和:554979

約数の個数: 24

約数和(自身を含む): 3215817864

約数和(自身を除く): 1695575444

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 554833, 1109666, 2219332, 2774165, 5548330, 11096660, 76012121, 152024242, 304048484, 380060605, 760121210, 1520242420]

約数ペア:

[(1, 1520242420), (2, 760121210), (4, 380060605), (5, 304048484), (10, 152024242), (20, 76012121), (137, 11096660), (274, 5548330), (548, 2774165), (685, 2219332), (1370, 1109666), (2740, 554833)]