78994045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 106444800

約数和(自身を除く): 27450755

約数列:

[1, 5, 13, 31, 65, 155, 197, 199, 403, 985, 995, 2015, 2561, 2587, 6107, 6169, 12805, 12935, 30535, 30845, 39203, 79391, 80197, 196015, 396955, 400985, 509639, 1215293, 2548195, 6076465, 15798809, 78994045]

約数ペア:

[(1, 78994045), (5, 15798809), (13, 6076465), (31, 2548195), (65, 1215293), (155, 509639), (197, 400985), (199, 396955), (403, 196015), (985, 80197), (995, 79391), (2015, 39203), (2561, 30845), (2587, 30535), (6107, 12935), (6169, 12805)]