8431225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 12570624

約数和(自身を除く): 4139399

約数列:

[1, 5, 11, 23, 25, 31, 43, 55, 115, 155, 215, 253, 275, 341, 473, 575, 713, 775, 989, 1075, 1265, 1333, 1705, 2365, 3565, 4945, 6325, 6665, 7843, 8525, 10879, 11825, 14663, 17825, 24725, 30659, 33325, 39215, 54395, 73315, 153295, 196075, 271975, 337249, 366575, 766475, 1686245, 8431225]

約数ペア:

[(1, 8431225), (5, 1686245), (11, 766475), (23, 366575), (25, 337249), (31, 271975), (43, 196075), (55, 153295), (115, 73315), (155, 54395), (215, 39215), (253, 33325), (275, 30659), (341, 24725), (473, 17825), (575, 14663), (713, 11825), (775, 10879), (989, 8525), (1075, 7843), (1265, 6665), (1333, 6325), (1705, 4945), (2365, 3565)]