78415960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2719}}^1$

素因数の和:2840

約数の個数: 64

約数和(自身を含む): 203673600

約数和(自身を除く): 125257640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 1030, 1442, 2060, 2719, 2884, 3605, 4120, 5438, 5768, 7210, 10876, 13595, 14420, 19033, 21752, 27190, 28840, 38066, 54380, 76132, 95165, 108760, 152264, 190330, 280057, 380660, 560114, 761320, 1120228, 1400285, 1960399, 2240456, 2800570, 3920798, 5601140, 7841596, 9801995, 11202280, 15683192, 19603990, 39207980, 78415960]

約数ペア:

[(1, 78415960), (2, 39207980), (4, 19603990), (5, 15683192), (7, 11202280), (8, 9801995), (10, 7841596), (14, 5601140), (20, 3920798), (28, 2800570), (35, 2240456), (40, 1960399), (56, 1400285), (70, 1120228), (103, 761320), (140, 560114), (206, 380660), (280, 280057), (412, 190330), (515, 152264), (721, 108760), (824, 95165), (1030, 76132), (1442, 54380), (2060, 38066), (2719, 28840), (2884, 27190), (3605, 21752), (4120, 19033), (5438, 14420), (5768, 13595), (7210, 10876)]