18839520

素因数分解:

$2^5\times 3^3\times 5^1\times 7^2\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 288

約数和(自身を含む): 77565600

約数和(自身を除く): 58726080

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, 49, 54, 56, 60, 63, 70, 72, 80, 84, 89, 90, 96, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 160, 168, 178, 180, 189, 196, 210, 216, 224, 240, 245, 252, 267, 270, 280, 288, 294, 315, 336, 356, 360, 378, 392, 420, 432, 441, 445, 480, 490, 504, 534, 540, 560, 588, 623, 630, 672, 712, 720, 735, 756, 784, 801, 840, 864, 882, 890, 945, 980, 1008, 1068, 1080, 1120, 1176, 1246, 1260, 1323, 1335, 1424, 1440, 1470, 1512, 1568, 1602, 1680, 1764, 1780, 1869, 1890, 1960, 2016, 2136, 2160, 2205, 2352, 2403, 2492, 2520, 2646, 2670, 2848, 2940, 3024, 3115, 3204, 3360, 3528, 3560, 3738, 3780, 3920, 4005, 4272, 4320, 4361, 4410, 4704, 4806, 4984, 5040, 5292, 5340, 5607, 5880, 6048, 6230, 6408, 6615, 7056, 7120, 7476, 7560, 7840, 8010, 8544, 8722, 8820, 9345, 9612, 9968, 10080, 10584, 10680, 11214, 11760, 12015, 12460, 12816, 13083, 13230, 14112, 14240, 14952, 15120, 16020, 16821, 17444, 17640, 18690, 19224, 19936, 21168, 21360, 21805, 22428, 23520, 24030, 24920, 25632, 26166, 26460, 28035, 29904, 30240, 32040, 33642, 34888, 35280, 37380, 38448, 39249, 42336, 42720, 43610, 44856, 48060, 49840, 52332, 52920, 56070, 59808, 64080, 65415, 67284, 69776, 70560, 74760, 76896, 78498, 84105, 87220, 89712, 96120, 99680, 104664, 105840, 112140, 117747, 128160, 130830, 134568, 139552, 149520, 156996, 168210, 174440, 179424, 192240, 196245, 209328, 211680, 224280, 235494, 261660, 269136, 299040, 313992, 336420, 348880, 384480, 392490, 418656, 448560, 470988, 523320, 538272, 588735, 627984, 672840, 697760, 784980, 897120, 941976, 1046640, 1177470, 1255968, 1345680, 1569960, 1883952, 2093280, 2354940, 2691360, 3139920, 3767904, 4709880, 6279840, 9419760, 18839520]

約数ペア:

[(1, 18839520), (2, 9419760), (3, 6279840), (4, 4709880), (5, 3767904), (6, 3139920), (7, 2691360), (8, 2354940), (9, 2093280), (10, 1883952), (12, 1569960), (14, 1345680), (15, 1255968), (16, 1177470), (18, 1046640), (20, 941976), (21, 897120), (24, 784980), (27, 697760), (28, 672840), (30, 627984), (32, 588735), (35, 538272), (36, 523320), (40, 470988), (42, 448560), (45, 418656), (48, 392490), (49, 384480), (54, 348880), (56, 336420), (60, 313992), (63, 299040), (70, 269136), (72, 261660), (80, 235494), (84, 224280), (89, 211680), (90, 209328), (96, 196245), (98, 192240), (105, 179424), (108, 174440), (112, 168210), (120, 156996), (126, 149520), (135, 139552), (140, 134568), (144, 130830), (147, 128160), (160, 117747), (168, 112140), (178, 105840), (180, 104664), (189, 99680), (196, 96120), (210, 89712), (216, 87220), (224, 84105), (240, 78498), (245, 76896), (252, 74760), (267, 70560), (270, 69776), (280, 67284), (288, 65415), (294, 64080), (315, 59808), (336, 56070), (356, 52920), (360, 52332), (378, 49840), (392, 48060), (420, 44856), (432, 43610), (441, 42720), (445, 42336), (480, 39249), (490, 38448), (504, 37380), (534, 35280), (540, 34888), (560, 33642), (588, 32040), (623, 30240), (630, 29904), (672, 28035), (712, 26460), (720, 26166), (735, 25632), (756, 24920), (784, 24030), (801, 23520), (840, 22428), (864, 21805), (882, 21360), (890, 21168), (945, 19936), (980, 19224), (1008, 18690), (1068, 17640), (1080, 17444), (1120, 16821), (1176, 16020), (1246, 15120), (1260, 14952), (1323, 14240), (1335, 14112), (1424, 13230), (1440, 13083), (1470, 12816), (1512, 12460), (1568, 12015), (1602, 11760), (1680, 11214), (1764, 10680), (1780, 10584), (1869, 10080), (1890, 9968), (1960, 9612), (2016, 9345), (2136, 8820), (2160, 8722), (2205, 8544), (2352, 8010), (2403, 7840), (2492, 7560), (2520, 7476), (2646, 7120), (2670, 7056), (2848, 6615), (2940, 6408), (3024, 6230), (3115, 6048), (3204, 5880), (3360, 5607), (3528, 5340), (3560, 5292), (3738, 5040), (3780, 4984), (3920, 4806), (4005, 4704), (4272, 4410), (4320, 4361)]