18896800

素因数分解:

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

素因数の和:135

約数の個数: 144

約数和(自身を含む): 52496640

約数和(自身を除く): 33599840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 25, 26, 32, 40, 46, 50, 52, 65, 79, 80, 92, 100, 104, 115, 130, 158, 160, 184, 200, 208, 230, 260, 299, 316, 325, 368, 395, 400, 416, 460, 520, 575, 598, 632, 650, 736, 790, 800, 920, 1027, 1040, 1150, 1196, 1264, 1300, 1495, 1580, 1817, 1840, 1975, 2054, 2080, 2300, 2392, 2528, 2600, 2990, 3160, 3634, 3680, 3950, 4108, 4600, 4784, 5135, 5200, 5980, 6320, 7268, 7475, 7900, 8216, 9085, 9200, 9568, 10270, 10400, 11960, 12640, 14536, 14950, 15800, 16432, 18170, 18400, 20540, 23621, 23920, 25675, 29072, 29900, 31600, 32864, 36340, 41080, 45425, 47242, 47840, 51350, 58144, 59800, 63200, 72680, 82160, 90850, 94484, 102700, 118105, 119600, 145360, 164320, 181700, 188968, 205400, 236210, 239200, 290720, 363400, 377936, 410800, 472420, 590525, 726800, 755872, 821600, 944840, 1181050, 1453600, 1889680, 2362100, 3779360, 4724200, 9448400, 18896800]

約数ペア:

[(1, 18896800), (2, 9448400), (4, 4724200), (5, 3779360), (8, 2362100), (10, 1889680), (13, 1453600), (16, 1181050), (20, 944840), (23, 821600), (25, 755872), (26, 726800), (32, 590525), (40, 472420), (46, 410800), (50, 377936), (52, 363400), (65, 290720), (79, 239200), (80, 236210), (92, 205400), (100, 188968), (104, 181700), (115, 164320), (130, 145360), (158, 119600), (160, 118105), (184, 102700), (200, 94484), (208, 90850), (230, 82160), (260, 72680), (299, 63200), (316, 59800), (325, 58144), (368, 51350), (395, 47840), (400, 47242), (416, 45425), (460, 41080), (520, 36340), (575, 32864), (598, 31600), (632, 29900), (650, 29072), (736, 25675), (790, 23920), (800, 23621), (920, 20540), (1027, 18400), (1040, 18170), (1150, 16432), (1196, 15800), (1264, 14950), (1300, 14536), (1495, 12640), (1580, 11960), (1817, 10400), (1840, 10270), (1975, 9568), (2054, 9200), (2080, 9085), (2300, 8216), (2392, 7900), (2528, 7475), (2600, 7268), (2990, 6320), (3160, 5980), (3634, 5200), (3680, 5135), (3950, 4784), (4108, 4600)]