28059265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 39070080

約数和(自身を除く): 11010815

約数列:

[1, 5, 13, 17, 65, 67, 85, 221, 335, 379, 871, 1105, 1139, 1895, 4355, 4927, 5695, 6443, 14807, 24635, 25393, 32215, 74035, 83759, 126965, 330109, 418795, 431681, 1650545, 2158405, 5611853, 28059265]

約数ペア:

[(1, 28059265), (5, 5611853), (13, 2158405), (17, 1650545), (65, 431681), (67, 418795), (85, 330109), (221, 126965), (335, 83759), (379, 74035), (871, 32215), (1105, 25393), (1139, 24635), (1895, 14807), (4355, 6443), (4927, 5695)]