18538920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2239}}^1$

素因数の和:2279

約数の個数: 96

約数和(自身を含む): 62899200

約数和(自身を除く): 44360280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2239, 2760, 4140, 4478, 6717, 8280, 8956, 11195, 13434, 17912, 20151, 22390, 26868, 33585, 40302, 44780, 51497, 53736, 67170, 80604, 89560, 100755, 102994, 134340, 154491, 161208, 201510, 205988, 257485, 268680, 308982, 403020, 411976, 463473, 514970, 617964, 772455, 806040, 926946, 1029940, 1235928, 1544910, 1853892, 2059880, 2317365, 3089820, 3707784, 4634730, 6179640, 9269460, 18538920]

約数ペア:

[(1, 18538920), (2, 9269460), (3, 6179640), (4, 4634730), (5, 3707784), (6, 3089820), (8, 2317365), (9, 2059880), (10, 1853892), (12, 1544910), (15, 1235928), (18, 1029940), (20, 926946), (23, 806040), (24, 772455), (30, 617964), (36, 514970), (40, 463473), (45, 411976), (46, 403020), (60, 308982), (69, 268680), (72, 257485), (90, 205988), (92, 201510), (115, 161208), (120, 154491), (138, 134340), (180, 102994), (184, 100755), (207, 89560), (230, 80604), (276, 67170), (345, 53736), (360, 51497), (414, 44780), (460, 40302), (552, 33585), (690, 26868), (828, 22390), (920, 20151), (1035, 17912), (1380, 13434), (1656, 11195), (2070, 8956), (2239, 8280), (2760, 6717), (4140, 4478)]