18892775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 27855360

約数和(自身を除く): 8962585

約数列:

[1, 5, 11, 23, 25, 29, 55, 103, 115, 145, 253, 275, 319, 515, 575, 667, 725, 1133, 1265, 1595, 2369, 2575, 2987, 3335, 5665, 6325, 7337, 7975, 11845, 14935, 16675, 26059, 28325, 32857, 36685, 59225, 68701, 74675, 130295, 164285, 183425, 343505, 651475, 755711, 821425, 1717525, 3778555, 18892775]

約数ペア:

[(1, 18892775), (5, 3778555), (11, 1717525), (23, 821425), (25, 755711), (29, 651475), (55, 343505), (103, 183425), (115, 164285), (145, 130295), (253, 74675), (275, 68701), (319, 59225), (515, 36685), (575, 32857), (667, 28325), (725, 26059), (1133, 16675), (1265, 14935), (1595, 11845), (2369, 7975), (2575, 7337), (2987, 6325), (3335, 5665)]