2004380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 4892160

約数和(自身を除く): 2887780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 139, 140, 206, 278, 412, 515, 556, 695, 721, 973, 1030, 1390, 1442, 1946, 2060, 2780, 2884, 3605, 3892, 4865, 7210, 9730, 14317, 14420, 19460, 28634, 57268, 71585, 100219, 143170, 200438, 286340, 400876, 501095, 1002190, 2004380]

約数ペア:

[(1, 2004380), (2, 1002190), (4, 501095), (5, 400876), (7, 286340), (10, 200438), (14, 143170), (20, 100219), (28, 71585), (35, 57268), (70, 28634), (103, 19460), (139, 14420), (140, 14317), (206, 9730), (278, 7210), (412, 4865), (515, 3892), (556, 3605), (695, 2884), (721, 2780), (973, 2060), (1030, 1946), (1390, 1442)]