19005560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 30415240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 659, 721, 824, 1030, 1318, 1442, 2060, 2636, 2884, 3295, 3605, 4120, 4613, 5272, 5768, 6590, 7210, 9226, 13180, 14420, 18452, 23065, 26360, 28840, 36904, 46130, 67877, 92260, 135754, 184520, 271508, 339385, 475139, 543016, 678770, 950278, 1357540, 1900556, 2375695, 2715080, 3801112, 4751390, 9502780, 19005560]

約数ペア:

[(1, 19005560), (2, 9502780), (4, 4751390), (5, 3801112), (7, 2715080), (8, 2375695), (10, 1900556), (14, 1357540), (20, 950278), (28, 678770), (35, 543016), (40, 475139), (56, 339385), (70, 271508), (103, 184520), (140, 135754), (206, 92260), (280, 67877), (412, 46130), (515, 36904), (659, 28840), (721, 26360), (824, 23065), (1030, 18452), (1318, 14420), (1442, 13180), (2060, 9226), (2636, 7210), (2884, 6590), (3295, 5768), (3605, 5272), (4120, 4613)]