20089125

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{2551}}^1$

素因数の和:2579

約数の個数: 48

約数和(自身を含む): 41403648

約数和(自身を除く): 21314523

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2551, 2625, 7653, 7875, 12755, 17857, 22959, 38265, 53571, 63775, 89285, 114795, 160713, 191325, 267855, 318875, 446425, 573975, 803565, 956625, 1339275, 2232125, 2869875, 4017825, 6696375, 20089125]

約数ペア:

[(1, 20089125), (3, 6696375), (5, 4017825), (7, 2869875), (9, 2232125), (15, 1339275), (21, 956625), (25, 803565), (35, 573975), (45, 446425), (63, 318875), (75, 267855), (105, 191325), (125, 160713), (175, 114795), (225, 89285), (315, 63775), (375, 53571), (525, 38265), (875, 22959), (1125, 17857), (1575, 12755), (2551, 7875), (2625, 7653)]