28485753985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1\times {\mathrm{21277}}^1$

素因数の和:21817

約数の個数: 32

約数和(自身を含む): 37748874240

約数和(自身を除く): 9263120255

約数列:

[1, 5, 13, 43, 65, 215, 479, 559, 2395, 2795, 6227, 20597, 21277, 31135, 102985, 106385, 267761, 276601, 914911, 1338805, 1383005, 4574555, 10191683, 11893843, 50958415, 59469215, 132491879, 438242369, 662459395, 2191211845, 5697150797, 28485753985]

約数ペア:

[(1, 28485753985), (5, 5697150797), (13, 2191211845), (43, 662459395), (65, 438242369), (215, 132491879), (479, 59469215), (559, 50958415), (2395, 11893843), (2795, 10191683), (6227, 4574555), (20597, 1383005), (21277, 1338805), (31135, 914911), (102985, 276601), (106385, 267761)]