27991217995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2027}}^1\times {\mathrm{12497}}^1$

素因数の和:14559

約数の個数: 32

約数和(自身を含む): 38323067328

約数和(自身を除く): 10331849333

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 2027, 10135, 12497, 26351, 34459, 62485, 131755, 162461, 172295, 212449, 447967, 812305, 1062245, 2239835, 2761837, 13809185, 25331419, 126657095, 329308447, 430634123, 1646542235, 2153170615, 5598243599, 27991217995]

約数ペア:

[(1, 27991217995), (5, 5598243599), (13, 2153170615), (17, 1646542235), (65, 430634123), (85, 329308447), (221, 126657095), (1105, 25331419), (2027, 13809185), (10135, 2761837), (12497, 2239835), (26351, 1062245), (34459, 812305), (62485, 447967), (131755, 212449), (162461, 172295)]