28249195

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 37182672

約数和(自身を除く): 8933477

約数列:

[1, 5, 13, 65, 101, 169, 331, 505, 845, 1313, 1655, 4303, 6565, 17069, 21515, 33431, 55939, 85345, 167155, 279695, 434603, 2173015, 5649839, 28249195]

約数ペア:

[(1, 28249195), (5, 5649839), (13, 2173015), (65, 434603), (101, 279695), (169, 167155), (331, 85345), (505, 55939), (845, 33431), (1313, 21515), (1655, 17069), (4303, 6565)]