81481920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6529}}^1$

素因数の和:6562

約数の個数: 112

約数和(自身を含む): 278648160

約数和(自身を除く): 197166240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 6529, 12480, 13058, 19587, 26116, 32645, 39174, 52232, 65290, 78348, 84877, 97935, 104464, 130580, 156696, 169754, 195870, 208928, 254631, 261160, 313392, 339508, 391740, 417856, 424385, 509262, 522320, 626784, 679016, 783480, 848770, 1018524, 1044640, 1253568, 1273155, 1358032, 1566960, 1697540, 2037048, 2089280, 2546310, 2716064, 3133920, 3395080, 4074096, 5092620, 5432128, 6267840, 6790160, 8148192, 10185240, 13580320, 16296384, 20370480, 27160640, 40740960, 81481920]

約数ペア:

[(1, 81481920), (2, 40740960), (3, 27160640), (4, 20370480), (5, 16296384), (6, 13580320), (8, 10185240), (10, 8148192), (12, 6790160), (13, 6267840), (15, 5432128), (16, 5092620), (20, 4074096), (24, 3395080), (26, 3133920), (30, 2716064), (32, 2546310), (39, 2089280), (40, 2037048), (48, 1697540), (52, 1566960), (60, 1358032), (64, 1273155), (65, 1253568), (78, 1044640), (80, 1018524), (96, 848770), (104, 783480), (120, 679016), (130, 626784), (156, 522320), (160, 509262), (192, 424385), (195, 417856), (208, 391740), (240, 339508), (260, 313392), (312, 261160), (320, 254631), (390, 208928), (416, 195870), (480, 169754), (520, 156696), (624, 130580), (780, 104464), (832, 97935), (960, 84877), (1040, 78348), (1248, 65290), (1560, 52232), (2080, 39174), (2496, 32645), (3120, 26116), (4160, 19587), (6240, 13058), (6529, 12480)]