78721805

素因数分解:

$5^1\times {\mathrm{29}}^2\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 99356712

約数和(自身を除く): 20634907

約数列:

[1, 5, 29, 97, 145, 193, 485, 841, 965, 2813, 4205, 5597, 14065, 18721, 27985, 81577, 93605, 162313, 407885, 542909, 811565, 2714545, 15744361, 78721805]

約数ペア:

[(1, 78721805), (5, 15744361), (29, 2714545), (97, 811565), (145, 542909), (193, 407885), (485, 162313), (841, 93605), (965, 81577), (2813, 27985), (4205, 18721), (5597, 14065)]