20097225

素因数分解:

$3^2\times 5^2\times {\mathrm{179}}^1\times {\mathrm{499}}^1$

素因数の和:694

約数の個数: 36

約数和(自身を含む): 36270000

約数和(自身を除く): 16172775

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 179, 225, 499, 537, 895, 1497, 1611, 2495, 2685, 4475, 4491, 7485, 8055, 12475, 13425, 22455, 37425, 40275, 89321, 112275, 267963, 446605, 803889, 1339815, 2233025, 4019445, 6699075, 20097225]

約数ペア:

[(1, 20097225), (3, 6699075), (5, 4019445), (9, 2233025), (15, 1339815), (25, 803889), (45, 446605), (75, 267963), (179, 112275), (225, 89321), (499, 40275), (537, 37425), (895, 22455), (1497, 13425), (1611, 12475), (2495, 8055), (2685, 7485), (4475, 4491)]