2838960020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{7433}}^1$

素因数の和:7581

約数の個数: 72

約数和(自身を含む): 6513700536

約数和(自身を除く): 3674740516

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 169, 226, 260, 338, 452, 565, 676, 845, 1130, 1469, 1690, 2260, 2938, 3380, 5876, 7345, 7433, 14690, 14866, 19097, 29380, 29732, 37165, 38194, 74330, 76388, 95485, 96629, 148660, 190970, 193258, 381940, 386516, 483145, 839929, 966290, 1256177, 1679858, 1932580, 2512354, 3359716, 4199645, 5024708, 6280885, 8399290, 10919077, 12561770, 16798580, 21838154, 25123540, 43676308, 54595385, 109190770, 141948001, 218381540, 283896002, 567792004, 709740005, 1419480010, 2838960020]

約数ペア:

[(1, 2838960020), (2, 1419480010), (4, 709740005), (5, 567792004), (10, 283896002), (13, 218381540), (20, 141948001), (26, 109190770), (52, 54595385), (65, 43676308), (113, 25123540), (130, 21838154), (169, 16798580), (226, 12561770), (260, 10919077), (338, 8399290), (452, 6280885), (565, 5024708), (676, 4199645), (845, 3359716), (1130, 2512354), (1469, 1932580), (1690, 1679858), (2260, 1256177), (2938, 966290), (3380, 839929), (5876, 483145), (7345, 386516), (7433, 381940), (14690, 193258), (14866, 190970), (19097, 148660), (29380, 96629), (29732, 95485), (37165, 76388), (38194, 74330)]