254874760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21169}}^1$

素因数の和:21230

約数の個数: 64

約数和(自身を含む): 670665600

約数和(自身を除く): 415790840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 21169, 42338, 84676, 105845, 148183, 169352, 211690, 296366, 423380, 592732, 740915, 846760, 910267, 1185464, 1481830, 1820534, 2963660, 3641068, 4551335, 5927320, 6371869, 7282136, 9102670, 12743738, 18205340, 25487476, 31859345, 36410680, 50974952, 63718690, 127437380, 254874760]

約数ペア:

[(1, 254874760), (2, 127437380), (4, 63718690), (5, 50974952), (7, 36410680), (8, 31859345), (10, 25487476), (14, 18205340), (20, 12743738), (28, 9102670), (35, 7282136), (40, 6371869), (43, 5927320), (56, 4551335), (70, 3641068), (86, 2963660), (140, 1820534), (172, 1481830), (215, 1185464), (280, 910267), (301, 846760), (344, 740915), (430, 592732), (602, 423380), (860, 296366), (1204, 211690), (1505, 169352), (1720, 148183), (2408, 105845), (3010, 84676), (6020, 42338), (12040, 21169)]