20270275

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:495

約数の個数: 24

約数和(自身を含む): 26426880

約数和(自身を除く): 6156605

約数列:

[1, 5, 25, 29, 73, 145, 365, 383, 725, 1825, 1915, 2117, 9575, 10585, 11107, 27959, 52925, 55535, 139795, 277675, 698975, 810811, 4054055, 20270275]

約数ペア:

[(1, 20270275), (5, 4054055), (25, 810811), (29, 698975), (73, 277675), (145, 139795), (365, 55535), (383, 52925), (725, 27959), (1825, 11107), (1915, 10585), (2117, 9575)]