20664672

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 66189312

約数和(自身を除く): 45524640

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 49, 56, 69, 84, 92, 96, 98, 112, 138, 147, 161, 168, 184, 191, 196, 224, 276, 294, 322, 336, 368, 382, 392, 483, 552, 573, 588, 644, 672, 736, 764, 784, 966, 1104, 1127, 1146, 1176, 1288, 1337, 1528, 1568, 1932, 2208, 2254, 2292, 2352, 2576, 2674, 3056, 3381, 3864, 4011, 4393, 4508, 4584, 4704, 5152, 5348, 6112, 6762, 7728, 8022, 8786, 9016, 9168, 9359, 10696, 13179, 13524, 15456, 16044, 17572, 18032, 18336, 18718, 21392, 26358, 27048, 28077, 30751, 32088, 35144, 36064, 37436, 42784, 52716, 54096, 56154, 61502, 64176, 70288, 74872, 92253, 105432, 108192, 112308, 123004, 128352, 140576, 149744, 184506, 210864, 215257, 224616, 246008, 299488, 369012, 421728, 430514, 449232, 492016, 645771, 738024, 861028, 898464, 984032, 1291542, 1476048, 1722056, 2583084, 2952096, 3444112, 5166168, 6888224, 10332336, 20664672]

約数ペア:

[(1, 20664672), (2, 10332336), (3, 6888224), (4, 5166168), (6, 3444112), (7, 2952096), (8, 2583084), (12, 1722056), (14, 1476048), (16, 1291542), (21, 984032), (23, 898464), (24, 861028), (28, 738024), (32, 645771), (42, 492016), (46, 449232), (48, 430514), (49, 421728), (56, 369012), (69, 299488), (84, 246008), (92, 224616), (96, 215257), (98, 210864), (112, 184506), (138, 149744), (147, 140576), (161, 128352), (168, 123004), (184, 112308), (191, 108192), (196, 105432), (224, 92253), (276, 74872), (294, 70288), (322, 64176), (336, 61502), (368, 56154), (382, 54096), (392, 52716), (483, 42784), (552, 37436), (573, 36064), (588, 35144), (644, 32088), (672, 30751), (736, 28077), (764, 27048), (784, 26358), (966, 21392), (1104, 18718), (1127, 18336), (1146, 18032), (1176, 17572), (1288, 16044), (1337, 15456), (1528, 13524), (1568, 13179), (1932, 10696), (2208, 9359), (2254, 9168), (2292, 9016), (2352, 8786), (2576, 8022), (2674, 7728), (3056, 6762), (3381, 6112), (3864, 5348), (4011, 5152), (4393, 4704), (4508, 4584)]