18794440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 50561280

約数和(自身を除く): 31766840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 49, 56, 70, 86, 98, 140, 172, 196, 215, 223, 245, 280, 301, 344, 392, 430, 446, 490, 602, 860, 892, 980, 1115, 1204, 1505, 1561, 1720, 1784, 1960, 2107, 2230, 2408, 3010, 3122, 4214, 4460, 6020, 6244, 7805, 8428, 8920, 9589, 10535, 10927, 12040, 12488, 15610, 16856, 19178, 21070, 21854, 31220, 38356, 42140, 43708, 47945, 54635, 62440, 67123, 76712, 84280, 87416, 95890, 109270, 134246, 191780, 218540, 268492, 335615, 383560, 437080, 469861, 536984, 671230, 939722, 1342460, 1879444, 2349305, 2684920, 3758888, 4698610, 9397220, 18794440]

約数ペア:

[(1, 18794440), (2, 9397220), (4, 4698610), (5, 3758888), (7, 2684920), (8, 2349305), (10, 1879444), (14, 1342460), (20, 939722), (28, 671230), (35, 536984), (40, 469861), (43, 437080), (49, 383560), (56, 335615), (70, 268492), (86, 218540), (98, 191780), (140, 134246), (172, 109270), (196, 95890), (215, 87416), (223, 84280), (245, 76712), (280, 67123), (301, 62440), (344, 54635), (392, 47945), (430, 43708), (446, 42140), (490, 38356), (602, 31220), (860, 21854), (892, 21070), (980, 19178), (1115, 16856), (1204, 15610), (1505, 12488), (1561, 12040), (1720, 10927), (1784, 10535), (1960, 9589), (2107, 8920), (2230, 8428), (2408, 7805), (3010, 6244), (3122, 6020), (4214, 4460)]