18198040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{631}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 47324160

約数和(自身を除く): 29126120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 631, 721, 824, 1030, 1262, 1442, 2060, 2524, 2884, 3155, 3605, 4120, 4417, 5048, 5768, 6310, 7210, 8834, 12620, 14420, 17668, 22085, 25240, 28840, 35336, 44170, 64993, 88340, 129986, 176680, 259972, 324965, 454951, 519944, 649930, 909902, 1299860, 1819804, 2274755, 2599720, 3639608, 4549510, 9099020, 18198040]

約数ペア:

[(1, 18198040), (2, 9099020), (4, 4549510), (5, 3639608), (7, 2599720), (8, 2274755), (10, 1819804), (14, 1299860), (20, 909902), (28, 649930), (35, 519944), (40, 454951), (56, 324965), (70, 259972), (103, 176680), (140, 129986), (206, 88340), (280, 64993), (412, 44170), (515, 35336), (631, 28840), (721, 25240), (824, 22085), (1030, 17668), (1262, 14420), (1442, 12620), (2060, 8834), (2524, 7210), (2884, 6310), (3155, 5768), (3605, 5048), (4120, 4417)]