20808060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 192

約数和(自身を含む): 74360832

約数和(自身を除く): 53552772

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 37, 39, 42, 52, 60, 65, 70, 74, 78, 84, 91, 103, 105, 111, 130, 140, 148, 156, 182, 185, 195, 206, 210, 222, 259, 260, 273, 309, 364, 370, 390, 412, 420, 444, 455, 481, 515, 518, 546, 555, 618, 721, 740, 777, 780, 910, 962, 1030, 1036, 1092, 1110, 1236, 1295, 1339, 1365, 1442, 1443, 1545, 1554, 1820, 1924, 2060, 2163, 2220, 2405, 2590, 2678, 2730, 2884, 2886, 3090, 3108, 3367, 3605, 3811, 3885, 4017, 4326, 4810, 5180, 5356, 5460, 5772, 6180, 6695, 6734, 7210, 7215, 7622, 7770, 8034, 8652, 9373, 9620, 10101, 10815, 11433, 13390, 13468, 14420, 14430, 15244, 15540, 16068, 16835, 18746, 19055, 20085, 20202, 21630, 22866, 26677, 26780, 28119, 28860, 33670, 37492, 38110, 40170, 40404, 43260, 45732, 46865, 49543, 50505, 53354, 56238, 57165, 67340, 76220, 80031, 80340, 93730, 99086, 101010, 106708, 112476, 114330, 133385, 140595, 148629, 160062, 187460, 198172, 202020, 228660, 247715, 266770, 281190, 297258, 320124, 346801, 400155, 495430, 533540, 562380, 594516, 693602, 743145, 800310, 990860, 1040403, 1387204, 1486290, 1600620, 1734005, 2080806, 2972580, 3468010, 4161612, 5202015, 6936020, 10404030, 20808060]

約数ペア:

[(1, 20808060), (2, 10404030), (3, 6936020), (4, 5202015), (5, 4161612), (6, 3468010), (7, 2972580), (10, 2080806), (12, 1734005), (13, 1600620), (14, 1486290), (15, 1387204), (20, 1040403), (21, 990860), (26, 800310), (28, 743145), (30, 693602), (35, 594516), (37, 562380), (39, 533540), (42, 495430), (52, 400155), (60, 346801), (65, 320124), (70, 297258), (74, 281190), (78, 266770), (84, 247715), (91, 228660), (103, 202020), (105, 198172), (111, 187460), (130, 160062), (140, 148629), (148, 140595), (156, 133385), (182, 114330), (185, 112476), (195, 106708), (206, 101010), (210, 99086), (222, 93730), (259, 80340), (260, 80031), (273, 76220), (309, 67340), (364, 57165), (370, 56238), (390, 53354), (412, 50505), (420, 49543), (444, 46865), (455, 45732), (481, 43260), (515, 40404), (518, 40170), (546, 38110), (555, 37492), (618, 33670), (721, 28860), (740, 28119), (777, 26780), (780, 26677), (910, 22866), (962, 21630), (1030, 20202), (1036, 20085), (1092, 19055), (1110, 18746), (1236, 16835), (1295, 16068), (1339, 15540), (1365, 15244), (1442, 14430), (1443, 14420), (1545, 13468), (1554, 13390), (1820, 11433), (1924, 10815), (2060, 10101), (2163, 9620), (2220, 9373), (2405, 8652), (2590, 8034), (2678, 7770), (2730, 7622), (2884, 7215), (2886, 7210), (3090, 6734), (3108, 6695), (3367, 6180), (3605, 5772), (3811, 5460), (3885, 5356), (4017, 5180), (4326, 4810)]