20012175

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3067}}^1$

素因数の和:3112

約数の個数: 36

約数和(自身を含む): 37092120

約数和(自身を除く): 17079945

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 3067, 6525, 9201, 15335, 27603, 46005, 76675, 88943, 138015, 230025, 266829, 444715, 690075, 800487, 1334145, 2223575, 4002435, 6670725, 20012175]

約数ペア:

[(1, 20012175), (3, 6670725), (5, 4002435), (9, 2223575), (15, 1334145), (25, 800487), (29, 690075), (45, 444715), (75, 266829), (87, 230025), (145, 138015), (225, 88943), (261, 76675), (435, 46005), (725, 27603), (1305, 15335), (2175, 9201), (3067, 6525)]