28040515

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{3181}}^1$

素因数の和:3270

約数の個数: 16

約数和(自身を含む): 35282016

約数和(自身を除く): 7241501

約数列:

[1, 5, 41, 43, 205, 215, 1763, 3181, 8815, 15905, 130421, 136783, 652105, 683915, 5608103, 28040515]

約数ペア:

[(1, 28040515), (5, 5608103), (41, 683915), (43, 652105), (205, 136783), (215, 130421), (1763, 15905), (3181, 8815)]