52780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:58

約数の個数: 48

約数和(自身を含む): 141120

約数和(自身を除く): 88340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 52, 58, 65, 70, 91, 116, 130, 140, 145, 182, 203, 260, 290, 364, 377, 406, 455, 580, 754, 812, 910, 1015, 1508, 1820, 1885, 2030, 2639, 3770, 4060, 5278, 7540, 10556, 13195, 26390, 52780]

約数ペア:

[(1, 52780), (2, 26390), (4, 13195), (5, 10556), (7, 7540), (10, 5278), (13, 4060), (14, 3770), (20, 2639), (26, 2030), (28, 1885), (29, 1820), (35, 1508), (52, 1015), (58, 910), (65, 812), (70, 754), (91, 580), (116, 455), (130, 406), (140, 377), (145, 364), (182, 290), (203, 260)]