78231875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 106840800

約数和(自身を除く): 28608925

約数列:

[1, 5, 17, 25, 37, 85, 125, 185, 199, 425, 625, 629, 925, 995, 2125, 3145, 3383, 4625, 4975, 7363, 10625, 15725, 16915, 23125, 24875, 36815, 78625, 84575, 124375, 125171, 184075, 393125, 422875, 625855, 920375, 2114375, 3129275, 4601875, 15646375, 78231875]

約数ペア:

[(1, 78231875), (5, 15646375), (17, 4601875), (25, 3129275), (37, 2114375), (85, 920375), (125, 625855), (185, 422875), (199, 393125), (425, 184075), (625, 125171), (629, 124375), (925, 84575), (995, 78625), (2125, 36815), (3145, 24875), (3383, 23125), (4625, 16915), (4975, 15725), (7363, 10625)]