4280015

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 5412096

約数和(自身を除く): 1132081

約数列:

[1, 5, 31, 53, 155, 265, 521, 1643, 2605, 8215, 16151, 27613, 80755, 138065, 856003, 4280015]

約数ペア:

[(1, 4280015), (5, 856003), (31, 138065), (53, 80755), (155, 27613), (265, 16151), (521, 8215), (1643, 2605)]