78985985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39199}}^1$

素因数の和:39248

約数の個数: 16

約数和(自身を含む): 105369600

約数和(自身を除く): 26383615

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 39199, 195995, 509587, 1215169, 2547935, 6075845, 15797197, 78985985]

約数ペア:

[(1, 78985985), (5, 15797197), (13, 6075845), (31, 2547935), (65, 1215169), (155, 509587), (403, 195995), (2015, 39199)]