204900488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 424614960

約数和(自身を除く): 219714472

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 137, 146, 197, 274, 292, 394, 548, 584, 788, 949, 1096, 1576, 1781, 1898, 2561, 3562, 3796, 5122, 7124, 7592, 10001, 10244, 14248, 14381, 20002, 20488, 26989, 28762, 40004, 53978, 57524, 80008, 107956, 115048, 130013, 186953, 215912, 260026, 350857, 373906, 520052, 701714, 747812, 1040104, 1403428, 1495624, 1970197, 2806856, 3940394, 7880788, 15761576, 25612561, 51225122, 102450244, 204900488]

約数ペア:

[(1, 204900488), (2, 102450244), (4, 51225122), (8, 25612561), (13, 15761576), (26, 7880788), (52, 3940394), (73, 2806856), (104, 1970197), (137, 1495624), (146, 1403428), (197, 1040104), (274, 747812), (292, 701714), (394, 520052), (548, 373906), (584, 350857), (788, 260026), (949, 215912), (1096, 186953), (1576, 130013), (1781, 115048), (1898, 107956), (2561, 80008), (3562, 57524), (3796, 53978), (5122, 40004), (7124, 28762), (7592, 26989), (10001, 20488), (10244, 20002), (14248, 14381)]