2678420

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{853}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 5667144

約数和(自身を除く): 2988724

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 853, 1570, 1706, 3140, 3412, 4265, 8530, 17060, 133921, 267842, 535684, 669605, 1339210, 2678420]

約数ペア:

[(1, 2678420), (2, 1339210), (4, 669605), (5, 535684), (10, 267842), (20, 133921), (157, 17060), (314, 8530), (628, 4265), (785, 3412), (853, 3140), (1570, 1706)]