21440160

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{709}}^1$

素因数の和:740

約数の個数: 192

約数和(自身を含む): 85881600

約数和(自身を除く): 64441440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 709, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1418, 1440, 1512, 1680, 1890, 2016, 2127, 2160, 2520, 2836, 3024, 3360, 3545, 3780, 4254, 4320, 4963, 5040, 5672, 6048, 6381, 7090, 7560, 8508, 9926, 10080, 10635, 11344, 12762, 14180, 14889, 15120, 17016, 19143, 19852, 21270, 22688, 24815, 25524, 28360, 29778, 30240, 31905, 34032, 38286, 39704, 42540, 44667, 49630, 51048, 56720, 59556, 63810, 68064, 74445, 76572, 79408, 85080, 89334, 95715, 99260, 102096, 113440, 119112, 127620, 134001, 148890, 153144, 158816, 170160, 178668, 191430, 198520, 204192, 223335, 238224, 255240, 268002, 297780, 306288, 340320, 357336, 382860, 397040, 446670, 476448, 510480, 536004, 595560, 612576, 670005, 714672, 765720, 794080, 893340, 1020960, 1072008, 1191120, 1340010, 1429344, 1531440, 1786680, 2144016, 2382240, 2680020, 3062880, 3573360, 4288032, 5360040, 7146720, 10720080, 21440160]

約数ペア:

[(1, 21440160), (2, 10720080), (3, 7146720), (4, 5360040), (5, 4288032), (6, 3573360), (7, 3062880), (8, 2680020), (9, 2382240), (10, 2144016), (12, 1786680), (14, 1531440), (15, 1429344), (16, 1340010), (18, 1191120), (20, 1072008), (21, 1020960), (24, 893340), (27, 794080), (28, 765720), (30, 714672), (32, 670005), (35, 612576), (36, 595560), (40, 536004), (42, 510480), (45, 476448), (48, 446670), (54, 397040), (56, 382860), (60, 357336), (63, 340320), (70, 306288), (72, 297780), (80, 268002), (84, 255240), (90, 238224), (96, 223335), (105, 204192), (108, 198520), (112, 191430), (120, 178668), (126, 170160), (135, 158816), (140, 153144), (144, 148890), (160, 134001), (168, 127620), (180, 119112), (189, 113440), (210, 102096), (216, 99260), (224, 95715), (240, 89334), (252, 85080), (270, 79408), (280, 76572), (288, 74445), (315, 68064), (336, 63810), (360, 59556), (378, 56720), (420, 51048), (432, 49630), (480, 44667), (504, 42540), (540, 39704), (560, 38286), (630, 34032), (672, 31905), (709, 30240), (720, 29778), (756, 28360), (840, 25524), (864, 24815), (945, 22688), (1008, 21270), (1080, 19852), (1120, 19143), (1260, 17016), (1418, 15120), (1440, 14889), (1512, 14180), (1680, 12762), (1890, 11344), (2016, 10635), (2127, 10080), (2160, 9926), (2520, 8508), (2836, 7560), (3024, 7090), (3360, 6381), (3545, 6048), (3780, 5672), (4254, 5040), (4320, 4963)]