2754220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 6709248

約数和(自身を除く): 3955028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 191, 206, 382, 412, 515, 721, 764, 955, 1030, 1337, 1442, 1910, 2060, 2674, 2884, 3605, 3820, 5348, 6685, 7210, 13370, 14420, 19673, 26740, 39346, 78692, 98365, 137711, 196730, 275422, 393460, 550844, 688555, 1377110, 2754220]

約数ペア:

[(1, 2754220), (2, 1377110), (4, 688555), (5, 550844), (7, 393460), (10, 275422), (14, 196730), (20, 137711), (28, 98365), (35, 78692), (70, 39346), (103, 26740), (140, 19673), (191, 14420), (206, 13370), (382, 7210), (412, 6685), (515, 5348), (721, 3820), (764, 3605), (955, 2884), (1030, 2674), (1337, 2060), (1442, 1910)]