20641488

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2671}}^1$

素因数の和:2712

約数の個数: 80

約数和(自身を含む): 63614976

約数和(自身を除く): 42973488

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 42, 46, 48, 56, 69, 84, 92, 112, 138, 161, 168, 184, 276, 322, 336, 368, 483, 552, 644, 966, 1104, 1288, 1932, 2576, 2671, 3864, 5342, 7728, 8013, 10684, 16026, 18697, 21368, 32052, 37394, 42736, 56091, 61433, 64104, 74788, 112182, 122866, 128208, 149576, 184299, 224364, 245732, 299152, 368598, 430031, 448728, 491464, 737196, 860062, 897456, 982928, 1290093, 1474392, 1720124, 2580186, 2948784, 3440248, 5160372, 6880496, 10320744, 20641488]

約数ペア:

[(1, 20641488), (2, 10320744), (3, 6880496), (4, 5160372), (6, 3440248), (7, 2948784), (8, 2580186), (12, 1720124), (14, 1474392), (16, 1290093), (21, 982928), (23, 897456), (24, 860062), (28, 737196), (42, 491464), (46, 448728), (48, 430031), (56, 368598), (69, 299152), (84, 245732), (92, 224364), (112, 184299), (138, 149576), (161, 128208), (168, 122866), (184, 112182), (276, 74788), (322, 64104), (336, 61433), (368, 56091), (483, 42736), (552, 37394), (644, 32052), (966, 21368), (1104, 18697), (1288, 16026), (1932, 10684), (2576, 8013), (2671, 7728), (3864, 5342)]