21619840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:150

約数の個数: 128

約数和(自身を含む): 58605120

約数和(自身を除く): 36985280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 83, 88, 110, 128, 148, 160, 166, 176, 185, 220, 296, 320, 332, 352, 370, 407, 415, 440, 592, 640, 664, 704, 740, 814, 830, 880, 913, 1184, 1328, 1408, 1480, 1628, 1660, 1760, 1826, 2035, 2368, 2656, 2960, 3071, 3256, 3320, 3520, 3652, 4070, 4565, 4736, 5312, 5920, 6142, 6512, 6640, 7040, 7304, 8140, 9130, 10624, 11840, 12284, 13024, 13280, 14608, 15355, 16280, 18260, 23680, 24568, 26048, 26560, 29216, 30710, 32560, 33781, 36520, 49136, 52096, 53120, 58432, 61420, 65120, 67562, 73040, 98272, 116864, 122840, 130240, 135124, 146080, 168905, 196544, 245680, 260480, 270248, 292160, 337810, 393088, 491360, 540496, 584320, 675620, 982720, 1080992, 1351240, 1965440, 2161984, 2702480, 4323968, 5404960, 10809920, 21619840]

約数ペア:

[(1, 21619840), (2, 10809920), (4, 5404960), (5, 4323968), (8, 2702480), (10, 2161984), (11, 1965440), (16, 1351240), (20, 1080992), (22, 982720), (32, 675620), (37, 584320), (40, 540496), (44, 491360), (55, 393088), (64, 337810), (74, 292160), (80, 270248), (83, 260480), (88, 245680), (110, 196544), (128, 168905), (148, 146080), (160, 135124), (166, 130240), (176, 122840), (185, 116864), (220, 98272), (296, 73040), (320, 67562), (332, 65120), (352, 61420), (370, 58432), (407, 53120), (415, 52096), (440, 49136), (592, 36520), (640, 33781), (664, 32560), (704, 30710), (740, 29216), (814, 26560), (830, 26048), (880, 24568), (913, 23680), (1184, 18260), (1328, 16280), (1408, 15355), (1480, 14608), (1628, 13280), (1660, 13024), (1760, 12284), (1826, 11840), (2035, 10624), (2368, 9130), (2656, 8140), (2960, 7304), (3071, 7040), (3256, 6640), (3320, 6512), (3520, 6142), (3652, 5920), (4070, 5312), (4565, 4736)]