81130375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 108883008

約数和(自身を除く): 27752633

約数列:

[1, 5, 17, 25, 73, 85, 125, 365, 425, 523, 1241, 1825, 2125, 2615, 6205, 8891, 9125, 13075, 31025, 38179, 44455, 65375, 155125, 190895, 222275, 649043, 954475, 1111375, 3245215, 4772375, 16226075, 81130375]

約数ペア:

[(1, 81130375), (5, 16226075), (17, 4772375), (25, 3245215), (73, 1111375), (85, 954475), (125, 649043), (365, 222275), (425, 190895), (523, 155125), (1241, 65375), (1825, 44455), (2125, 38179), (2615, 31025), (6205, 13075), (8891, 9125)]