239128568

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{439}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 524620800

約数和(自身を除く): 285492232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 137, 142, 274, 284, 439, 497, 548, 568, 878, 959, 994, 1096, 1756, 1918, 1988, 3073, 3512, 3836, 3976, 6146, 7672, 9727, 12292, 19454, 24584, 31169, 38908, 60143, 62338, 68089, 77816, 120286, 124676, 136178, 218183, 240572, 249352, 272356, 421001, 436366, 481144, 544712, 842002, 872732, 1684004, 1745464, 3368008, 4270153, 8540306, 17080612, 29891071, 34161224, 59782142, 119564284, 239128568]

約数ペア:

[(1, 239128568), (2, 119564284), (4, 59782142), (7, 34161224), (8, 29891071), (14, 17080612), (28, 8540306), (56, 4270153), (71, 3368008), (137, 1745464), (142, 1684004), (274, 872732), (284, 842002), (439, 544712), (497, 481144), (548, 436366), (568, 421001), (878, 272356), (959, 249352), (994, 240572), (1096, 218183), (1756, 136178), (1918, 124676), (1988, 120286), (3073, 77816), (3512, 68089), (3836, 62338), (3976, 60143), (6146, 38908), (7672, 31169), (9727, 24584), (12292, 19454)]