251289240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:849

約数の個数: 128

約数和(自身を含む): 803520000

約数和(自身を除く): 552230760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 199, 204, 255, 340, 398, 408, 510, 597, 619, 680, 796, 995, 1020, 1194, 1238, 1592, 1857, 1990, 2040, 2388, 2476, 2985, 3095, 3383, 3714, 3980, 4776, 4952, 5970, 6190, 6766, 7428, 7960, 9285, 10149, 10523, 11940, 12380, 13532, 14856, 16915, 18570, 20298, 21046, 23880, 24760, 27064, 31569, 33830, 37140, 40596, 42092, 50745, 52615, 63138, 67660, 74280, 81192, 84184, 101490, 105230, 123181, 126276, 135320, 157845, 202980, 210460, 246362, 252552, 315690, 369543, 405960, 420920, 492724, 615905, 631380, 739086, 985448, 1231810, 1262760, 1478172, 1847715, 2094077, 2463620, 2956344, 3695430, 4188154, 4927240, 6282231, 7390860, 8376308, 10470385, 12564462, 14781720, 16752616, 20940770, 25128924, 31411155, 41881540, 50257848, 62822310, 83763080, 125644620, 251289240]

約数ペア:

[(1, 251289240), (2, 125644620), (3, 83763080), (4, 62822310), (5, 50257848), (6, 41881540), (8, 31411155), (10, 25128924), (12, 20940770), (15, 16752616), (17, 14781720), (20, 12564462), (24, 10470385), (30, 8376308), (34, 7390860), (40, 6282231), (51, 4927240), (60, 4188154), (68, 3695430), (85, 2956344), (102, 2463620), (120, 2094077), (136, 1847715), (170, 1478172), (199, 1262760), (204, 1231810), (255, 985448), (340, 739086), (398, 631380), (408, 615905), (510, 492724), (597, 420920), (619, 405960), (680, 369543), (796, 315690), (995, 252552), (1020, 246362), (1194, 210460), (1238, 202980), (1592, 157845), (1857, 135320), (1990, 126276), (2040, 123181), (2388, 105230), (2476, 101490), (2985, 84184), (3095, 81192), (3383, 74280), (3714, 67660), (3980, 63138), (4776, 52615), (4952, 50745), (5970, 42092), (6190, 40596), (6766, 37140), (7428, 33830), (7960, 31569), (9285, 27064), (10149, 24760), (10523, 23880), (11940, 21046), (12380, 20298), (13532, 18570), (14856, 16915)]