21019448160

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1621871}}^1$

素因数の和:1621898

約数の個数: 120

約数和(自身を含む): 74181181536

約数和(自身を除く): 53161733376

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, 1621871, 3243742, 4865613, 6487484, 8109355, 9731226, 12974968, 14596839, 16218710, 19462452, 24328065, 25949936, 29193678, 32437420, 38924904, 43790517, 48656130, 51899872, 58387356, 64874840, 72984195, 77849808, 87581034, 97312260, 116774712, 129749680, 131371551, 145968390, 155699616, 175162068, 194624520, 218952585, 233549424, 259499360, 262743102, 291936780, 350324136, 389249040, 437905170, 467098848, 525486204, 583873560, 656857755, 700648272, 778498080, 875810340, 1050972408, 1167747120, 1313715510, 1401296544, 1751620680, 2101944816, 2335494240, 2627431020, 3503241360, 4203889632, 5254862040, 7006482720, 10509724080, 21019448160]

約数ペア:

[(1, 21019448160), (2, 10509724080), (3, 7006482720), (4, 5254862040), (5, 4203889632), (6, 3503241360), (8, 2627431020), (9, 2335494240), (10, 2101944816), (12, 1751620680), (15, 1401296544), (16, 1313715510), (18, 1167747120), (20, 1050972408), (24, 875810340), (27, 778498080), (30, 700648272), (32, 656857755), (36, 583873560), (40, 525486204), (45, 467098848), (48, 437905170), (54, 389249040), (60, 350324136), (72, 291936780), (80, 262743102), (81, 259499360), (90, 233549424), (96, 218952585), (108, 194624520), (120, 175162068), (135, 155699616), (144, 145968390), (160, 131371551), (162, 129749680), (180, 116774712), (216, 97312260), (240, 87581034), (270, 77849808), (288, 72984195), (324, 64874840), (360, 58387356), (405, 51899872), (432, 48656130), (480, 43790517), (540, 38924904), (648, 32437420), (720, 29193678), (810, 25949936), (864, 24328065), (1080, 19462452), (1296, 16218710), (1440, 14596839), (1620, 12974968), (2160, 9731226), (2592, 8109355), (3240, 6487484), (4320, 4865613), (6480, 3243742), (12960, 1621871)]