51447760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 151990272

約数和(自身を除く): 100542512

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 74, 80, 91, 104, 112, 130, 140, 148, 182, 185, 191, 208, 259, 260, 280, 296, 364, 370, 382, 455, 481, 518, 520, 560, 592, 728, 740, 764, 910, 955, 962, 1036, 1040, 1295, 1337, 1456, 1480, 1528, 1820, 1910, 1924, 2072, 2405, 2483, 2590, 2674, 2960, 3056, 3367, 3640, 3820, 3848, 4144, 4810, 4966, 5180, 5348, 6685, 6734, 7067, 7280, 7640, 7696, 9620, 9932, 10360, 10696, 12415, 13370, 13468, 14134, 15280, 16835, 17381, 19240, 19864, 20720, 21392, 24830, 26740, 26936, 28268, 33670, 34762, 35335, 38480, 39728, 49469, 49660, 53480, 53872, 56536, 67340, 69524, 70670, 86905, 91871, 98938, 99320, 106960, 113072, 134680, 139048, 141340, 173810, 183742, 197876, 198640, 247345, 269360, 278096, 282680, 347620, 367484, 395752, 459355, 494690, 565360, 643097, 695240, 734968, 791504, 918710, 989380, 1286194, 1390480, 1469936, 1837420, 1978760, 2572388, 3215485, 3674840, 3957520, 5144776, 6430970, 7349680, 10289552, 12861940, 25723880, 51447760]

約数ペア:

[(1, 51447760), (2, 25723880), (4, 12861940), (5, 10289552), (7, 7349680), (8, 6430970), (10, 5144776), (13, 3957520), (14, 3674840), (16, 3215485), (20, 2572388), (26, 1978760), (28, 1837420), (35, 1469936), (37, 1390480), (40, 1286194), (52, 989380), (56, 918710), (65, 791504), (70, 734968), (74, 695240), (80, 643097), (91, 565360), (104, 494690), (112, 459355), (130, 395752), (140, 367484), (148, 347620), (182, 282680), (185, 278096), (191, 269360), (208, 247345), (259, 198640), (260, 197876), (280, 183742), (296, 173810), (364, 141340), (370, 139048), (382, 134680), (455, 113072), (481, 106960), (518, 99320), (520, 98938), (560, 91871), (592, 86905), (728, 70670), (740, 69524), (764, 67340), (910, 56536), (955, 53872), (962, 53480), (1036, 49660), (1040, 49469), (1295, 39728), (1337, 38480), (1456, 35335), (1480, 34762), (1528, 33670), (1820, 28268), (1910, 26936), (1924, 26740), (2072, 24830), (2405, 21392), (2483, 20720), (2590, 19864), (2674, 19240), (2960, 17381), (3056, 16835), (3367, 15280), (3640, 14134), (3820, 13468), (3848, 13370), (4144, 12415), (4810, 10696), (4966, 10360), (5180, 9932), (5348, 9620), (6685, 7696), (6734, 7640), (7067, 7280)]