20408688

素因数分解:

$2^4\times 3^2\times {\mathrm{239}}^1\times {\mathrm{593}}^1$

素因数の和:846

約数の個数: 60

約数和(自身を含む): 57451680

約数和(自身を除く): 37042992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 239, 478, 593, 717, 956, 1186, 1434, 1779, 1912, 2151, 2372, 2868, 3558, 3824, 4302, 4744, 5337, 5736, 7116, 8604, 9488, 10674, 11472, 14232, 17208, 21348, 28464, 34416, 42696, 85392, 141727, 283454, 425181, 566908, 850362, 1133816, 1275543, 1700724, 2267632, 2551086, 3401448, 5102172, 6802896, 10204344, 20408688]

約数ペア:

[(1, 20408688), (2, 10204344), (3, 6802896), (4, 5102172), (6, 3401448), (8, 2551086), (9, 2267632), (12, 1700724), (16, 1275543), (18, 1133816), (24, 850362), (36, 566908), (48, 425181), (72, 283454), (144, 141727), (239, 85392), (478, 42696), (593, 34416), (717, 28464), (956, 21348), (1186, 17208), (1434, 14232), (1779, 11472), (1912, 10674), (2151, 9488), (2372, 8604), (2868, 7116), (3558, 5736), (3824, 5337), (4302, 4744)]