31489125

素因数分解:

$3^1\times 5^3\times {\mathrm{131}}^1\times {\mathrm{641}}^1$

素因数の和:790

約数の個数: 32

約数和(自身を含む): 52880256

約数和(自身を除く): 21391131

約数列:

[1, 3, 5, 15, 25, 75, 125, 131, 375, 393, 641, 655, 1923, 1965, 3205, 3275, 9615, 9825, 16025, 16375, 48075, 49125, 80125, 83971, 240375, 251913, 419855, 1259565, 2099275, 6297825, 10496375, 31489125]

約数ペア:

[(1, 31489125), (3, 10496375), (5, 6297825), (15, 2099275), (25, 1259565), (75, 419855), (125, 251913), (131, 240375), (375, 83971), (393, 80125), (641, 49125), (655, 48075), (1923, 16375), (1965, 16025), (3205, 9825), (3275, 9615)]