28140985

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{373}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 34467840

約数和(自身を除く): 6326855

約数列:

[1, 5, 79, 191, 373, 395, 955, 1865, 15089, 29467, 71243, 75445, 147335, 356215, 5628197, 28140985]

約数ペア:

[(1, 28140985), (5, 5628197), (79, 356215), (191, 147335), (373, 75445), (395, 71243), (955, 29467), (1865, 15089)]