49131680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:143

約数の個数: 144

約数和(自身を含む): 132814080

約数和(自身を除く): 83682400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 79, 80, 92, 104, 115, 130, 158, 160, 169, 184, 208, 230, 260, 299, 316, 338, 368, 395, 416, 460, 520, 598, 632, 676, 736, 790, 845, 920, 1027, 1040, 1196, 1264, 1352, 1495, 1580, 1690, 1817, 1840, 2054, 2080, 2392, 2528, 2704, 2990, 3160, 3380, 3634, 3680, 3887, 4108, 4784, 5135, 5408, 5980, 6320, 6760, 7268, 7774, 8216, 9085, 9568, 10270, 11960, 12640, 13351, 13520, 14536, 15548, 16432, 18170, 19435, 20540, 23621, 23920, 26702, 27040, 29072, 31096, 32864, 36340, 38870, 41080, 47242, 47840, 53404, 58144, 62192, 66755, 72680, 77740, 82160, 94484, 106808, 118105, 124384, 133510, 145360, 155480, 164320, 188968, 213616, 236210, 267020, 290720, 307073, 310960, 377936, 427232, 472420, 534040, 614146, 621920, 755872, 944840, 1068080, 1228292, 1535365, 1889680, 2136160, 2456584, 3070730, 3779360, 4913168, 6141460, 9826336, 12282920, 24565840, 49131680]

約数ペア:

[(1, 49131680), (2, 24565840), (4, 12282920), (5, 9826336), (8, 6141460), (10, 4913168), (13, 3779360), (16, 3070730), (20, 2456584), (23, 2136160), (26, 1889680), (32, 1535365), (40, 1228292), (46, 1068080), (52, 944840), (65, 755872), (79, 621920), (80, 614146), (92, 534040), (104, 472420), (115, 427232), (130, 377936), (158, 310960), (160, 307073), (169, 290720), (184, 267020), (208, 236210), (230, 213616), (260, 188968), (299, 164320), (316, 155480), (338, 145360), (368, 133510), (395, 124384), (416, 118105), (460, 106808), (520, 94484), (598, 82160), (632, 77740), (676, 72680), (736, 66755), (790, 62192), (845, 58144), (920, 53404), (1027, 47840), (1040, 47242), (1196, 41080), (1264, 38870), (1352, 36340), (1495, 32864), (1580, 31096), (1690, 29072), (1817, 27040), (1840, 26702), (2054, 23920), (2080, 23621), (2392, 20540), (2528, 19435), (2704, 18170), (2990, 16432), (3160, 15548), (3380, 14536), (3634, 13520), (3680, 13351), (3887, 12640), (4108, 11960), (4784, 10270), (5135, 9568), (5408, 9085), (5980, 8216), (6320, 7774), (6760, 7268)]