20560680

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:264

約数の個数: 192

約数和(自身を含む): 78624000

約数和(自身を除く): 58063320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 56, 60, 63, 70, 72, 82, 84, 90, 105, 120, 123, 126, 140, 164, 168, 180, 199, 205, 210, 246, 252, 280, 287, 315, 328, 360, 369, 398, 410, 420, 492, 504, 574, 597, 615, 630, 738, 796, 820, 840, 861, 984, 995, 1148, 1194, 1230, 1260, 1393, 1435, 1476, 1592, 1640, 1722, 1791, 1845, 1990, 2296, 2388, 2460, 2520, 2583, 2786, 2870, 2952, 2985, 3444, 3582, 3690, 3980, 4179, 4305, 4776, 4920, 5166, 5572, 5740, 5970, 6888, 6965, 7164, 7380, 7960, 8159, 8358, 8610, 8955, 10332, 11144, 11480, 11940, 12537, 12915, 13930, 14328, 14760, 16318, 16716, 17220, 17910, 20664, 20895, 23880, 24477, 25074, 25830, 27860, 32636, 33432, 34440, 35820, 40795, 41790, 48954, 50148, 51660, 55720, 57113, 62685, 65272, 71640, 73431, 81590, 83580, 97908, 100296, 103320, 114226, 122385, 125370, 146862, 163180, 167160, 171339, 195816, 228452, 244770, 250740, 285565, 293724, 326360, 342678, 367155, 456904, 489540, 501480, 514017, 571130, 587448, 685356, 734310, 856695, 979080, 1028034, 1142260, 1370712, 1468620, 1713390, 2056068, 2284520, 2570085, 2937240, 3426780, 4112136, 5140170, 6853560, 10280340, 20560680]

約数ペア:

[(1, 20560680), (2, 10280340), (3, 6853560), (4, 5140170), (5, 4112136), (6, 3426780), (7, 2937240), (8, 2570085), (9, 2284520), (10, 2056068), (12, 1713390), (14, 1468620), (15, 1370712), (18, 1142260), (20, 1028034), (21, 979080), (24, 856695), (28, 734310), (30, 685356), (35, 587448), (36, 571130), (40, 514017), (41, 501480), (42, 489540), (45, 456904), (56, 367155), (60, 342678), (63, 326360), (70, 293724), (72, 285565), (82, 250740), (84, 244770), (90, 228452), (105, 195816), (120, 171339), (123, 167160), (126, 163180), (140, 146862), (164, 125370), (168, 122385), (180, 114226), (199, 103320), (205, 100296), (210, 97908), (246, 83580), (252, 81590), (280, 73431), (287, 71640), (315, 65272), (328, 62685), (360, 57113), (369, 55720), (398, 51660), (410, 50148), (420, 48954), (492, 41790), (504, 40795), (574, 35820), (597, 34440), (615, 33432), (630, 32636), (738, 27860), (796, 25830), (820, 25074), (840, 24477), (861, 23880), (984, 20895), (995, 20664), (1148, 17910), (1194, 17220), (1230, 16716), (1260, 16318), (1393, 14760), (1435, 14328), (1476, 13930), (1592, 12915), (1640, 12537), (1722, 11940), (1791, 11480), (1845, 11144), (1990, 10332), (2296, 8955), (2388, 8610), (2460, 8358), (2520, 8159), (2583, 7960), (2786, 7380), (2870, 7164), (2952, 6965), (2985, 6888), (3444, 5970), (3582, 5740), (3690, 5572), (3980, 5166), (4179, 4920), (4305, 4776)]