78813215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{7723}}^1$

素因数の和:7898

約数の個数: 16

約数和(自身を含む): 102512928

約数和(自身を除く): 23699713

約数列:

[1, 5, 13, 65, 157, 785, 2041, 7723, 10205, 38615, 100399, 501995, 1212511, 6062555, 15762643, 78813215]

約数ペア:

[(1, 78813215), (5, 15762643), (13, 6062555), (65, 1212511), (157, 501995), (785, 100399), (2041, 38615), (7723, 10205)]