20455176

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{389}}^1$

素因数の和:718

約数の個数: 64

約数和(自身を含む): 58780800

約数和(自身を除く): 38325624

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 313, 389, 626, 778, 939, 1167, 1252, 1556, 1878, 2191, 2334, 2504, 2723, 3112, 3756, 4382, 4668, 5446, 6573, 7512, 8169, 8764, 9336, 10892, 13146, 16338, 17528, 21784, 26292, 32676, 52584, 65352, 121757, 243514, 365271, 487028, 730542, 852299, 974056, 1461084, 1704598, 2556897, 2922168, 3409196, 5113794, 6818392, 10227588, 20455176]

約数ペア:

[(1, 20455176), (2, 10227588), (3, 6818392), (4, 5113794), (6, 3409196), (7, 2922168), (8, 2556897), (12, 1704598), (14, 1461084), (21, 974056), (24, 852299), (28, 730542), (42, 487028), (56, 365271), (84, 243514), (168, 121757), (313, 65352), (389, 52584), (626, 32676), (778, 26292), (939, 21784), (1167, 17528), (1252, 16338), (1556, 13146), (1878, 10892), (2191, 9336), (2334, 8764), (2504, 8169), (2723, 7512), (3112, 6573), (3756, 5446), (4382, 4668)]