80371785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{643}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 138918528

約数和(自身を除く): 58546743

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 641, 643, 1923, 1929, 3205, 3215, 8333, 8359, 9615, 9645, 24999, 25077, 41665, 41795, 124995, 125385, 412163, 1236489, 2060815, 5358119, 6182445, 16074357, 26790595, 80371785]

約数ペア:

[(1, 80371785), (3, 26790595), (5, 16074357), (13, 6182445), (15, 5358119), (39, 2060815), (65, 1236489), (195, 412163), (641, 125385), (643, 124995), (1923, 41795), (1929, 41665), (3205, 25077), (3215, 24999), (8333, 9645), (8359, 9615)]