211200548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 408648240

約数和(自身を除く): 197447692

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 197, 212, 389, 394, 689, 778, 788, 1378, 1556, 2561, 2756, 5057, 5122, 10114, 10244, 10441, 20228, 20617, 20882, 41234, 41764, 76633, 82468, 135733, 153266, 268021, 271466, 306532, 536042, 542932, 996229, 1072084, 1992458, 3984916, 4061549, 8123098, 16246196, 52800137, 105600274, 211200548]

約数ペア:

[(1, 211200548), (2, 105600274), (4, 52800137), (13, 16246196), (26, 8123098), (52, 4061549), (53, 3984916), (106, 1992458), (197, 1072084), (212, 996229), (389, 542932), (394, 536042), (689, 306532), (778, 271466), (788, 268021), (1378, 153266), (1556, 135733), (2561, 82468), (2756, 76633), (5057, 41764), (5122, 41234), (10114, 20882), (10244, 20617), (10441, 20228)]