257421456

素因数分解:

$2^4\times 3^3\times {\mathrm{107}}^1\times {\mathrm{5569}}^1$

素因数の和:5693

約数の個数: 80

約数和(自身を含む): 745934400

約数和(自身を除く): 488512944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 107, 108, 144, 214, 216, 321, 428, 432, 642, 856, 963, 1284, 1712, 1926, 2568, 2889, 3852, 5136, 5569, 5778, 7704, 11138, 11556, 15408, 16707, 22276, 23112, 33414, 44552, 46224, 50121, 66828, 89104, 100242, 133656, 150363, 200484, 267312, 300726, 400968, 595883, 601452, 801936, 1191766, 1202904, 1787649, 2383532, 2405808, 3575298, 4767064, 5362947, 7150596, 9534128, 10725894, 14301192, 16088841, 21451788, 28602384, 32177682, 42903576, 64355364, 85807152, 128710728, 257421456]

約数ペア:

[(1, 257421456), (2, 128710728), (3, 85807152), (4, 64355364), (6, 42903576), (8, 32177682), (9, 28602384), (12, 21451788), (16, 16088841), (18, 14301192), (24, 10725894), (27, 9534128), (36, 7150596), (48, 5362947), (54, 4767064), (72, 3575298), (107, 2405808), (108, 2383532), (144, 1787649), (214, 1202904), (216, 1191766), (321, 801936), (428, 601452), (432, 595883), (642, 400968), (856, 300726), (963, 267312), (1284, 200484), (1712, 150363), (1926, 133656), (2568, 100242), (2889, 89104), (3852, 66828), (5136, 50121), (5569, 46224), (5778, 44552), (7704, 33414), (11138, 23112), (11556, 22276), (15408, 16707)]