19040320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:252

約数の個数: 112

約数和(自身を含む): 51206400

約数和(自身を除く): 32166080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 130, 160, 184, 199, 208, 230, 260, 299, 320, 368, 398, 416, 460, 520, 598, 736, 796, 832, 920, 995, 1040, 1196, 1472, 1495, 1592, 1840, 1990, 2080, 2392, 2587, 2990, 3184, 3680, 3980, 4160, 4577, 4784, 5174, 5980, 6368, 7360, 7960, 9154, 9568, 10348, 11960, 12736, 12935, 15920, 18308, 19136, 20696, 22885, 23920, 25870, 31840, 36616, 41392, 45770, 47840, 51740, 59501, 63680, 73232, 82784, 91540, 95680, 103480, 119002, 146464, 165568, 183080, 206960, 238004, 292928, 297505, 366160, 413920, 476008, 595010, 732320, 827840, 952016, 1190020, 1464640, 1904032, 2380040, 3808064, 4760080, 9520160, 19040320]

約数ペア:

[(1, 19040320), (2, 9520160), (4, 4760080), (5, 3808064), (8, 2380040), (10, 1904032), (13, 1464640), (16, 1190020), (20, 952016), (23, 827840), (26, 732320), (32, 595010), (40, 476008), (46, 413920), (52, 366160), (64, 297505), (65, 292928), (80, 238004), (92, 206960), (104, 183080), (115, 165568), (130, 146464), (160, 119002), (184, 103480), (199, 95680), (208, 91540), (230, 82784), (260, 73232), (299, 63680), (320, 59501), (368, 51740), (398, 47840), (416, 45770), (460, 41392), (520, 36616), (598, 31840), (736, 25870), (796, 23920), (832, 22885), (920, 20696), (995, 19136), (1040, 18308), (1196, 15920), (1472, 12935), (1495, 12736), (1592, 11960), (1840, 10348), (1990, 9568), (2080, 9154), (2392, 7960), (2587, 7360), (2990, 6368), (3184, 5980), (3680, 5174), (3980, 4784), (4160, 4577)]