28520345

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 12951655

約数列:

[1, 5, 7, 23, 35, 71, 115, 161, 355, 497, 499, 805, 1633, 2485, 2495, 3493, 8165, 11431, 11477, 17465, 35429, 57155, 57385, 80339, 177145, 248003, 401695, 814867, 1240015, 4074335, 5704069, 28520345]

約数ペア:

[(1, 28520345), (5, 5704069), (7, 4074335), (23, 1240015), (35, 814867), (71, 401695), (115, 248003), (161, 177145), (355, 80339), (497, 57385), (499, 57155), (805, 35429), (1633, 17465), (2485, 11477), (2495, 11431), (3493, 8165)]