40390420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2801}}^1$

素因数の和:2920

約数の個数: 48

約数和(自身を含む): 97913088

約数和(自身を除く): 57522668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2801, 2884, 3605, 5602, 7210, 11204, 14005, 14420, 19607, 28010, 39214, 56020, 78428, 98035, 196070, 288503, 392140, 577006, 1154012, 1442515, 2019521, 2885030, 4039042, 5770060, 8078084, 10097605, 20195210, 40390420]

約数ペア:

[(1, 40390420), (2, 20195210), (4, 10097605), (5, 8078084), (7, 5770060), (10, 4039042), (14, 2885030), (20, 2019521), (28, 1442515), (35, 1154012), (70, 577006), (103, 392140), (140, 288503), (206, 196070), (412, 98035), (515, 78428), (721, 56020), (1030, 39214), (1442, 28010), (2060, 19607), (2801, 14420), (2884, 14005), (3605, 11204), (5602, 7210)]