20380488

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{389}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 53352000

約数和(自身を除く): 32971512

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 59, 74, 111, 118, 148, 177, 222, 236, 296, 354, 389, 444, 472, 708, 778, 888, 1167, 1416, 1556, 2183, 2334, 3112, 4366, 4668, 6549, 8732, 9336, 13098, 14393, 17464, 22951, 26196, 28786, 43179, 45902, 52392, 57572, 68853, 86358, 91804, 115144, 137706, 172716, 183608, 275412, 345432, 550824, 849187, 1698374, 2547561, 3396748, 5095122, 6793496, 10190244, 20380488]

約数ペア:

[(1, 20380488), (2, 10190244), (3, 6793496), (4, 5095122), (6, 3396748), (8, 2547561), (12, 1698374), (24, 849187), (37, 550824), (59, 345432), (74, 275412), (111, 183608), (118, 172716), (148, 137706), (177, 115144), (222, 91804), (236, 86358), (296, 68853), (354, 57572), (389, 52392), (444, 45902), (472, 43179), (708, 28786), (778, 26196), (888, 22951), (1167, 17464), (1416, 14393), (1556, 13098), (2183, 9336), (2334, 8732), (3112, 6549), (4366, 4668)]