21085388640

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1626959}}^1$

素因数の和:1626986

約数の個数: 120

約数和(自身を含む): 74413896480

約数和(自身を除く): 53328507840

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, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2592, 3240, 4320, 6480, 12960, 1626959, 3253918, 4880877, 6507836, 8134795, 9761754, 13015672, 14642631, 16269590, 19523508, 24404385, 26031344, 29285262, 32539180, 39047016, 43927893, 48808770, 52062688, 58570524, 65078360, 73213155, 78094032, 87855786, 97617540, 117141048, 130156720, 131783679, 146426310, 156188064, 175711572, 195235080, 219639465, 234282096, 260313440, 263567358, 292852620, 351423144, 390470160, 439278930, 468564192, 527134716, 585705240, 658918395, 702846288, 780940320, 878557860, 1054269432, 1171410480, 1317836790, 1405692576, 1757115720, 2108538864, 2342820960, 2635673580, 3514231440, 4217077728, 5271347160, 7028462880, 10542694320, 21085388640]

約数ペア:

[(1, 21085388640), (2, 10542694320), (3, 7028462880), (4, 5271347160), (5, 4217077728), (6, 3514231440), (8, 2635673580), (9, 2342820960), (10, 2108538864), (12, 1757115720), (15, 1405692576), (16, 1317836790), (18, 1171410480), (20, 1054269432), (24, 878557860), (27, 780940320), (30, 702846288), (32, 658918395), (36, 585705240), (40, 527134716), (45, 468564192), (48, 439278930), (54, 390470160), (60, 351423144), (72, 292852620), (80, 263567358), (81, 260313440), (90, 234282096), (96, 219639465), (108, 195235080), (120, 175711572), (135, 156188064), (144, 146426310), (160, 131783679), (162, 130156720), (180, 117141048), (216, 97617540), (240, 87855786), (270, 78094032), (288, 73213155), (324, 65078360), (360, 58570524), (405, 52062688), (432, 48808770), (480, 43927893), (540, 39047016), (648, 32539180), (720, 29285262), (810, 26031344), (864, 24404385), (1080, 19523508), (1296, 16269590), (1440, 14642631), (1620, 13015672), (2160, 9761754), (2592, 8134795), (3240, 6507836), (4320, 4880877), (6480, 3253918), (12960, 1626959)]