20764944

素因数分解:

$2^4\times 3^3\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:765

約数の個数: 80

約数和(自身を含む): 60531840

約数和(自身を除く): 39766896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 71, 72, 108, 142, 144, 213, 216, 284, 426, 432, 568, 639, 677, 852, 1136, 1278, 1354, 1704, 1917, 2031, 2556, 2708, 3408, 3834, 4062, 5112, 5416, 6093, 7668, 8124, 10224, 10832, 12186, 15336, 16248, 18279, 24372, 30672, 32496, 36558, 48067, 48744, 73116, 96134, 97488, 144201, 146232, 192268, 288402, 292464, 384536, 432603, 576804, 769072, 865206, 1153608, 1297809, 1730412, 2307216, 2595618, 3460824, 5191236, 6921648, 10382472, 20764944]

約数ペア:

[(1, 20764944), (2, 10382472), (3, 6921648), (4, 5191236), (6, 3460824), (8, 2595618), (9, 2307216), (12, 1730412), (16, 1297809), (18, 1153608), (24, 865206), (27, 769072), (36, 576804), (48, 432603), (54, 384536), (71, 292464), (72, 288402), (108, 192268), (142, 146232), (144, 144201), (213, 97488), (216, 96134), (284, 73116), (426, 48744), (432, 48067), (568, 36558), (639, 32496), (677, 30672), (852, 24372), (1136, 18279), (1278, 16248), (1354, 15336), (1704, 12186), (1917, 10832), (2031, 10224), (2556, 8124), (2708, 7668), (3408, 6093), (3834, 5416), (4062, 5112)]