21828960

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 192

約数和(自身を含む): 79349760

約数和(自身を除く): 57520800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 72, 80, 90, 93, 96, 108, 120, 124, 135, 144, 155, 160, 163, 180, 186, 216, 240, 248, 270, 279, 288, 310, 326, 360, 372, 432, 465, 480, 489, 496, 540, 558, 620, 652, 720, 744, 815, 837, 864, 930, 978, 992, 1080, 1116, 1240, 1304, 1395, 1440, 1467, 1488, 1630, 1674, 1860, 1956, 2160, 2232, 2445, 2480, 2608, 2790, 2934, 2976, 3260, 3348, 3720, 3912, 4185, 4320, 4401, 4464, 4890, 4960, 5053, 5216, 5580, 5868, 6520, 6696, 7335, 7440, 7824, 8370, 8802, 8928, 9780, 10106, 11160, 11736, 13040, 13392, 14670, 14880, 15159, 15648, 16740, 17604, 19560, 20212, 22005, 22320, 23472, 25265, 26080, 26784, 29340, 30318, 33480, 35208, 39120, 40424, 44010, 44640, 45477, 46944, 50530, 58680, 60636, 66960, 70416, 75795, 78240, 80848, 88020, 90954, 101060, 117360, 121272, 133920, 136431, 140832, 151590, 161696, 176040, 181908, 202120, 227385, 234720, 242544, 272862, 303180, 352080, 363816, 404240, 454770, 485088, 545724, 606360, 682155, 704160, 727632, 808480, 909540, 1091448, 1212720, 1364310, 1455264, 1819080, 2182896, 2425440, 2728620, 3638160, 4365792, 5457240, 7276320, 10914480, 21828960]

約数ペア:

[(1, 21828960), (2, 10914480), (3, 7276320), (4, 5457240), (5, 4365792), (6, 3638160), (8, 2728620), (9, 2425440), (10, 2182896), (12, 1819080), (15, 1455264), (16, 1364310), (18, 1212720), (20, 1091448), (24, 909540), (27, 808480), (30, 727632), (31, 704160), (32, 682155), (36, 606360), (40, 545724), (45, 485088), (48, 454770), (54, 404240), (60, 363816), (62, 352080), (72, 303180), (80, 272862), (90, 242544), (93, 234720), (96, 227385), (108, 202120), (120, 181908), (124, 176040), (135, 161696), (144, 151590), (155, 140832), (160, 136431), (163, 133920), (180, 121272), (186, 117360), (216, 101060), (240, 90954), (248, 88020), (270, 80848), (279, 78240), (288, 75795), (310, 70416), (326, 66960), (360, 60636), (372, 58680), (432, 50530), (465, 46944), (480, 45477), (489, 44640), (496, 44010), (540, 40424), (558, 39120), (620, 35208), (652, 33480), (720, 30318), (744, 29340), (815, 26784), (837, 26080), (864, 25265), (930, 23472), (978, 22320), (992, 22005), (1080, 20212), (1116, 19560), (1240, 17604), (1304, 16740), (1395, 15648), (1440, 15159), (1467, 14880), (1488, 14670), (1630, 13392), (1674, 13040), (1860, 11736), (1956, 11160), (2160, 10106), (2232, 9780), (2445, 8928), (2480, 8802), (2608, 8370), (2790, 7824), (2934, 7440), (2976, 7335), (3260, 6696), (3348, 6520), (3720, 5868), (3912, 5580), (4185, 5216), (4320, 5053), (4401, 4960), (4464, 4890)]