80658125

素因数分解:

$5^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:255

約数の個数: 40

約数和(自身を含む): 109165056

約数和(自身を除く): 28506931

約数列:

[1, 5, 23, 25, 31, 115, 125, 155, 181, 575, 625, 713, 775, 905, 2875, 3565, 3875, 4163, 4525, 5611, 14375, 17825, 19375, 20815, 22625, 28055, 89125, 104075, 113125, 129053, 140275, 445625, 520375, 645265, 701375, 2601875, 3226325, 3506875, 16131625, 80658125]

約数ペア:

[(1, 80658125), (5, 16131625), (23, 3506875), (25, 3226325), (31, 2601875), (115, 701375), (125, 645265), (155, 520375), (181, 445625), (575, 140275), (625, 129053), (713, 113125), (775, 104075), (905, 89125), (2875, 28055), (3565, 22625), (3875, 20815), (4163, 19375), (4525, 17825), (5611, 14375)]