81958320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1279}}^1$

素因数の和:1387

約数の個数: 120

約数和(自身を含む): 278553600

約数和(自身を除く): 196595280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 89, 90, 120, 144, 178, 180, 240, 267, 356, 360, 445, 534, 712, 720, 801, 890, 1068, 1279, 1335, 1424, 1602, 1780, 2136, 2558, 2670, 3204, 3560, 3837, 4005, 4272, 5116, 5340, 6395, 6408, 7120, 7674, 8010, 10232, 10680, 11511, 12790, 12816, 15348, 16020, 19185, 20464, 21360, 23022, 25580, 30696, 32040, 38370, 46044, 51160, 57555, 61392, 64080, 76740, 92088, 102320, 113831, 115110, 153480, 184176, 227662, 230220, 306960, 341493, 455324, 460440, 569155, 682986, 910648, 920880, 1024479, 1138310, 1365972, 1707465, 1821296, 2048958, 2276620, 2731944, 3414930, 4097916, 4553240, 5122395, 5463888, 6829860, 8195832, 9106480, 10244790, 13659720, 16391664, 20489580, 27319440, 40979160, 81958320]

約数ペア:

[(1, 81958320), (2, 40979160), (3, 27319440), (4, 20489580), (5, 16391664), (6, 13659720), (8, 10244790), (9, 9106480), (10, 8195832), (12, 6829860), (15, 5463888), (16, 5122395), (18, 4553240), (20, 4097916), (24, 3414930), (30, 2731944), (36, 2276620), (40, 2048958), (45, 1821296), (48, 1707465), (60, 1365972), (72, 1138310), (80, 1024479), (89, 920880), (90, 910648), (120, 682986), (144, 569155), (178, 460440), (180, 455324), (240, 341493), (267, 306960), (356, 230220), (360, 227662), (445, 184176), (534, 153480), (712, 115110), (720, 113831), (801, 102320), (890, 92088), (1068, 76740), (1279, 64080), (1335, 61392), (1424, 57555), (1602, 51160), (1780, 46044), (2136, 38370), (2558, 32040), (2670, 30696), (3204, 25580), (3560, 23022), (3837, 21360), (4005, 20464), (4272, 19185), (5116, 16020), (5340, 15348), (6395, 12816), (6408, 12790), (7120, 11511), (7674, 10680), (8010, 10232)]