1291728815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{1103}}^1$

素因数の和:1583

約数の個数: 32

約数和(自身を含む): 1713761280

約数和(自身を除く): 422032465

約数列:

[1, 5, 13, 43, 65, 215, 419, 559, 1103, 2095, 2795, 5447, 5515, 14339, 18017, 27235, 47429, 71695, 90085, 234221, 237145, 462157, 616577, 1171105, 2310785, 3082885, 6008041, 19872751, 30040205, 99363755, 258345763, 1291728815]

約数ペア:

[(1, 1291728815), (5, 258345763), (13, 99363755), (43, 30040205), (65, 19872751), (215, 6008041), (419, 3082885), (559, 2310785), (1103, 1171105), (2095, 616577), (2795, 462157), (5447, 237145), (5515, 234221), (14339, 90085), (18017, 71695), (27235, 47429)]