18800075

素因数分解:

$5^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:276

約数の個数: 36

約数和(自身を含む): 27565200

約数和(自身を除く): 8765125

約数列:

[1, 5, 7, 25, 35, 49, 103, 149, 175, 245, 515, 721, 745, 1043, 1225, 2575, 3605, 3725, 5047, 5215, 7301, 15347, 18025, 25235, 26075, 36505, 76735, 107429, 126175, 182525, 383675, 537145, 752003, 2685725, 3760015, 18800075]

約数ペア:

[(1, 18800075), (5, 3760015), (7, 2685725), (25, 752003), (35, 537145), (49, 383675), (103, 182525), (149, 126175), (175, 107429), (245, 76735), (515, 36505), (721, 26075), (745, 25235), (1043, 18025), (1225, 15347), (2575, 7301), (3605, 5215), (3725, 5047)]