18399681725

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{2659}}^1$

素因数の和:2910

約数の個数: 48

約数和(自身を含む): 24077000640

約数和(自身を除く): 5677318915

約数列:

[1, 5, 25, 41, 43, 157, 205, 215, 785, 1025, 1075, 1763, 2659, 3925, 6437, 6751, 8815, 13295, 32185, 33755, 44075, 66475, 109019, 114337, 160925, 168775, 276791, 417463, 545095, 571685, 1383955, 2087315, 2725475, 2858425, 4687817, 6919775, 10436575, 17115983, 17950909, 23439085, 85579915, 89754545, 117195425, 427899575, 448772725, 735987269, 3679936345, 18399681725]

約数ペア:

[(1, 18399681725), (5, 3679936345), (25, 735987269), (41, 448772725), (43, 427899575), (157, 117195425), (205, 89754545), (215, 85579915), (785, 23439085), (1025, 17950909), (1075, 17115983), (1763, 10436575), (2659, 6919775), (3925, 4687817), (6437, 2858425), (6751, 2725475), (8815, 2087315), (13295, 1383955), (32185, 571685), (33755, 545095), (44075, 417463), (66475, 276791), (109019, 168775), (114337, 160925)]