19666875

素因数分解:

$3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{617}}^1$

素因数の和:657

約数の個数: 40

約数和(自身を含む): 34751376

約数和(自身を除く): 15084501

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 617, 625, 1275, 1851, 1875, 2125, 3085, 6375, 9255, 10489, 10625, 15425, 31467, 31875, 46275, 52445, 77125, 157335, 231375, 262225, 385625, 786675, 1156875, 1311125, 3933375, 6555625, 19666875]

約数ペア:

[(1, 19666875), (3, 6555625), (5, 3933375), (15, 1311125), (17, 1156875), (25, 786675), (51, 385625), (75, 262225), (85, 231375), (125, 157335), (255, 77125), (375, 52445), (425, 46275), (617, 31875), (625, 31467), (1275, 15425), (1851, 10625), (1875, 10489), (2125, 9255), (3085, 6375)]