28409225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1433}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 38586072

約数和(自身を除く): 10176847

約数列:

[1, 5, 13, 25, 61, 65, 305, 325, 793, 1433, 1525, 3965, 7165, 18629, 19825, 35825, 87413, 93145, 437065, 465725, 1136369, 2185325, 5681845, 28409225]

約数ペア:

[(1, 28409225), (5, 5681845), (13, 2185325), (25, 1136369), (61, 465725), (65, 437065), (305, 93145), (325, 87413), (793, 35825), (1433, 19825), (1525, 18629), (3965, 7165)]