81795350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17977}}^1$

素因数の和:18009

約数の個数: 48

約数和(自身を含む): 187258848

約数和(自身を除く): 105463498

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 17977, 35954, 89885, 125839, 179770, 233701, 251678, 449425, 467402, 629195, 898850, 1168505, 1258390, 1635907, 2337010, 3145975, 3271814, 5842525, 6291950, 8179535, 11685050, 16359070, 40897675, 81795350]

約数ペア:

[(1, 81795350), (2, 40897675), (5, 16359070), (7, 11685050), (10, 8179535), (13, 6291950), (14, 5842525), (25, 3271814), (26, 3145975), (35, 2337010), (50, 1635907), (65, 1258390), (70, 1168505), (91, 898850), (130, 629195), (175, 467402), (182, 449425), (325, 251678), (350, 233701), (455, 179770), (650, 125839), (910, 89885), (2275, 35954), (4550, 17977)]