81241920

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{9403}}^1$

素因数の和:9429

約数の個数: 112

約数和(自身を含む): 286633920

約数和(自身を除く): 205392000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2880, 4320, 8640, 9403, 18806, 28209, 37612, 47015, 56418, 75224, 84627, 94030, 112836, 141045, 150448, 169254, 188060, 225672, 253881, 282090, 300896, 338508, 376120, 423135, 451344, 507762, 564180, 601792, 677016, 752240, 846270, 902688, 1015524, 1128360, 1269405, 1354032, 1504480, 1692540, 1805376, 2031048, 2256720, 2538810, 2708064, 3008960, 3385080, 4062096, 4513440, 5077620, 5416128, 6770160, 8124192, 9026880, 10155240, 13540320, 16248384, 20310480, 27080640, 40620960, 81241920]

約数ペア:

[(1, 81241920), (2, 40620960), (3, 27080640), (4, 20310480), (5, 16248384), (6, 13540320), (8, 10155240), (9, 9026880), (10, 8124192), (12, 6770160), (15, 5416128), (16, 5077620), (18, 4513440), (20, 4062096), (24, 3385080), (27, 3008960), (30, 2708064), (32, 2538810), (36, 2256720), (40, 2031048), (45, 1805376), (48, 1692540), (54, 1504480), (60, 1354032), (64, 1269405), (72, 1128360), (80, 1015524), (90, 902688), (96, 846270), (108, 752240), (120, 677016), (135, 601792), (144, 564180), (160, 507762), (180, 451344), (192, 423135), (216, 376120), (240, 338508), (270, 300896), (288, 282090), (320, 253881), (360, 225672), (432, 188060), (480, 169254), (540, 150448), (576, 141045), (720, 112836), (864, 94030), (960, 84627), (1080, 75224), (1440, 56418), (1728, 47015), (2160, 37612), (2880, 28209), (4320, 18806), (8640, 9403)]