256544680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{24763}}^1$

素因数の和:24818

約数の個数: 64

約数和(自身を含む): 677543040

約数和(自身を除く): 420998360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 280, 296, 370, 518, 740, 1036, 1295, 1480, 2072, 2590, 5180, 10360, 24763, 49526, 99052, 123815, 173341, 198104, 247630, 346682, 495260, 693364, 866705, 916231, 990520, 1386728, 1733410, 1832462, 3466820, 3664924, 4581155, 6413617, 6933640, 7329848, 9162310, 12827234, 18324620, 25654468, 32068085, 36649240, 51308936, 64136170, 128272340, 256544680]

約数ペア:

[(1, 256544680), (2, 128272340), (4, 64136170), (5, 51308936), (7, 36649240), (8, 32068085), (10, 25654468), (14, 18324620), (20, 12827234), (28, 9162310), (35, 7329848), (37, 6933640), (40, 6413617), (56, 4581155), (70, 3664924), (74, 3466820), (140, 1832462), (148, 1733410), (185, 1386728), (259, 990520), (280, 916231), (296, 866705), (370, 693364), (518, 495260), (740, 346682), (1036, 247630), (1295, 198104), (1480, 173341), (2072, 123815), (2590, 99052), (5180, 49526), (10360, 24763)]