18808375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:252

約数の個数: 32

約数和(自身を含む): 25474176

約数和(自身を除く): 6665801

約数列:

[1, 5, 17, 25, 53, 85, 125, 167, 265, 425, 835, 901, 1325, 2125, 2839, 4175, 4505, 6625, 8851, 14195, 20875, 22525, 44255, 70975, 112625, 150467, 221275, 354875, 752335, 1106375, 3761675, 18808375]

約数ペア:

[(1, 18808375), (5, 3761675), (17, 1106375), (25, 752335), (53, 354875), (85, 221275), (125, 150467), (167, 112625), (265, 70975), (425, 44255), (835, 22525), (901, 20875), (1325, 14195), (2125, 8851), (2839, 6625), (4175, 4505)]