19784160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1249}}^1$

素因数の和:1281

約数の個数: 144

約数和(自身を含む): 73710000

約数和(自身を除く): 53925840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1249, 1320, 1440, 1584, 1760, 1980, 2498, 2640, 3168, 3747, 3960, 4996, 5280, 6245, 7494, 7920, 9992, 11241, 12490, 13739, 14988, 15840, 18735, 19984, 22482, 24980, 27478, 29976, 37470, 39968, 41217, 44964, 49960, 54956, 56205, 59952, 68695, 74940, 82434, 89928, 99920, 109912, 112410, 119904, 123651, 137390, 149880, 164868, 179856, 199840, 206085, 219824, 224820, 247302, 274780, 299760, 329736, 359712, 412170, 439648, 449640, 494604, 549560, 599520, 618255, 659472, 824340, 899280, 989208, 1099120, 1236510, 1318944, 1648680, 1798560, 1978416, 2198240, 2473020, 3297360, 3956832, 4946040, 6594720, 9892080, 19784160]

約数ペア:

[(1, 19784160), (2, 9892080), (3, 6594720), (4, 4946040), (5, 3956832), (6, 3297360), (8, 2473020), (9, 2198240), (10, 1978416), (11, 1798560), (12, 1648680), (15, 1318944), (16, 1236510), (18, 1099120), (20, 989208), (22, 899280), (24, 824340), (30, 659472), (32, 618255), (33, 599520), (36, 549560), (40, 494604), (44, 449640), (45, 439648), (48, 412170), (55, 359712), (60, 329736), (66, 299760), (72, 274780), (80, 247302), (88, 224820), (90, 219824), (96, 206085), (99, 199840), (110, 179856), (120, 164868), (132, 149880), (144, 137390), (160, 123651), (165, 119904), (176, 112410), (180, 109912), (198, 99920), (220, 89928), (240, 82434), (264, 74940), (288, 68695), (330, 59952), (352, 56205), (360, 54956), (396, 49960), (440, 44964), (480, 41217), (495, 39968), (528, 37470), (660, 29976), (720, 27478), (792, 24980), (880, 22482), (990, 19984), (1056, 18735), (1249, 15840), (1320, 14988), (1440, 13739), (1584, 12490), (1760, 11241), (1980, 9992), (2498, 7920), (2640, 7494), (3168, 6245), (3747, 5280), (3960, 4996)]