2178776875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{10223}}^1$

素因数の和:10285

約数の個数: 40

約数和(自身を含む): 3066218496

約数和(自身を除く): 887441621

約数列:

[1, 5, 11, 25, 31, 55, 125, 155, 275, 341, 625, 775, 1375, 1705, 3875, 6875, 8525, 10223, 19375, 42625, 51115, 112453, 213125, 255575, 316913, 562265, 1277875, 1584565, 2811325, 3486043, 6389375, 7922825, 14056625, 17430215, 39614125, 70283125, 87151075, 198070625, 435755375, 2178776875]

約数ペア:

[(1, 2178776875), (5, 435755375), (11, 198070625), (25, 87151075), (31, 70283125), (55, 39614125), (125, 17430215), (155, 14056625), (275, 7922825), (341, 6389375), (625, 3486043), (775, 2811325), (1375, 1584565), (1705, 1277875), (3875, 562265), (6875, 316913), (8525, 255575), (10223, 213125), (19375, 112453), (42625, 51115)]