28491590

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40129}}^1$

素因数の和:40207

約数の個数: 16

約数和(自身を含む): 52008480

約数和(自身を除く): 23516890

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 40129, 80258, 200645, 401290, 2849159, 5698318, 14245795, 28491590]

約数ペア:

[(1, 28491590), (2, 14245795), (5, 5698318), (10, 2849159), (71, 401290), (142, 200645), (355, 80258), (710, 40129)]