81954400

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 144

約数和(自身を含む): 223110720

約数和(自身を除く): 141156320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 67, 80, 88, 100, 110, 134, 139, 160, 176, 200, 220, 268, 275, 278, 335, 352, 400, 440, 536, 550, 556, 670, 695, 737, 800, 880, 1072, 1100, 1112, 1340, 1390, 1474, 1529, 1675, 1760, 2144, 2200, 2224, 2680, 2780, 2948, 3058, 3350, 3475, 3685, 4400, 4448, 5360, 5560, 5896, 6116, 6700, 6950, 7370, 7645, 8800, 9313, 10720, 11120, 11792, 12232, 13400, 13900, 14740, 15290, 18425, 18626, 22240, 23584, 24464, 26800, 27800, 29480, 30580, 36850, 37252, 38225, 46565, 48928, 53600, 55600, 58960, 61160, 73700, 74504, 76450, 93130, 102443, 111200, 117920, 122320, 147400, 149008, 152900, 186260, 204886, 232825, 244640, 294800, 298016, 305800, 372520, 409772, 465650, 512215, 589600, 611600, 745040, 819544, 931300, 1024430, 1223200, 1490080, 1639088, 1862600, 2048860, 2561075, 3278176, 3725200, 4097720, 5122150, 7450400, 8195440, 10244300, 16390880, 20488600, 40977200, 81954400]

約数ペア:

[(1, 81954400), (2, 40977200), (4, 20488600), (5, 16390880), (8, 10244300), (10, 8195440), (11, 7450400), (16, 5122150), (20, 4097720), (22, 3725200), (25, 3278176), (32, 2561075), (40, 2048860), (44, 1862600), (50, 1639088), (55, 1490080), (67, 1223200), (80, 1024430), (88, 931300), (100, 819544), (110, 745040), (134, 611600), (139, 589600), (160, 512215), (176, 465650), (200, 409772), (220, 372520), (268, 305800), (275, 298016), (278, 294800), (335, 244640), (352, 232825), (400, 204886), (440, 186260), (536, 152900), (550, 149008), (556, 147400), (670, 122320), (695, 117920), (737, 111200), (800, 102443), (880, 93130), (1072, 76450), (1100, 74504), (1112, 73700), (1340, 61160), (1390, 58960), (1474, 55600), (1529, 53600), (1675, 48928), (1760, 46565), (2144, 38225), (2200, 37252), (2224, 36850), (2680, 30580), (2780, 29480), (2948, 27800), (3058, 26800), (3350, 24464), (3475, 23584), (3685, 22240), (4400, 18626), (4448, 18425), (5360, 15290), (5560, 14740), (5896, 13900), (6116, 13400), (6700, 12232), (6950, 11792), (7370, 11120), (7645, 10720), (8800, 9313)]