78577920

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1$

素因数の和:405

約数の個数: 216

約数和(自身を含む): 286977600

約数和(自身を除く): 208399680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 64, 72, 76, 80, 90, 95, 96, 114, 120, 128, 144, 152, 160, 171, 180, 190, 192, 228, 240, 256, 285, 288, 304, 320, 342, 359, 360, 380, 384, 456, 480, 570, 576, 608, 640, 684, 718, 720, 760, 768, 855, 912, 960, 1077, 1140, 1152, 1216, 1280, 1368, 1436, 1440, 1520, 1710, 1795, 1824, 1920, 2154, 2280, 2304, 2432, 2736, 2872, 2880, 3040, 3231, 3420, 3590, 3648, 3840, 4308, 4560, 4864, 5385, 5472, 5744, 5760, 6080, 6462, 6821, 6840, 7180, 7296, 8616, 9120, 10770, 10944, 11488, 11520, 12160, 12924, 13642, 13680, 14360, 14592, 16155, 17232, 18240, 20463, 21540, 21888, 22976, 24320, 25848, 27284, 27360, 28720, 32310, 34105, 34464, 36480, 40926, 43080, 43776, 45952, 51696, 54568, 54720, 57440, 61389, 64620, 68210, 68928, 72960, 81852, 86160, 91904, 102315, 103392, 109136, 109440, 114880, 122778, 129240, 136420, 137856, 163704, 172320, 204630, 206784, 218272, 218880, 229760, 245556, 258480, 272840, 275712, 306945, 327408, 344640, 409260, 413568, 436544, 459520, 491112, 516960, 545680, 613890, 654816, 689280, 818520, 827136, 873088, 982224, 1033920, 1091360, 1227780, 1309632, 1378560, 1637040, 1746176, 1964448, 2067840, 2182720, 2455560, 2619264, 3274080, 3928896, 4135680, 4365440, 4911120, 5238528, 6548160, 7857792, 8730880, 9822240, 13096320, 15715584, 19644480, 26192640, 39288960, 78577920]

約数ペア:

[(1, 78577920), (2, 39288960), (3, 26192640), (4, 19644480), (5, 15715584), (6, 13096320), (8, 9822240), (9, 8730880), (10, 7857792), (12, 6548160), (15, 5238528), (16, 4911120), (18, 4365440), (19, 4135680), (20, 3928896), (24, 3274080), (30, 2619264), (32, 2455560), (36, 2182720), (38, 2067840), (40, 1964448), (45, 1746176), (48, 1637040), (57, 1378560), (60, 1309632), (64, 1227780), (72, 1091360), (76, 1033920), (80, 982224), (90, 873088), (95, 827136), (96, 818520), (114, 689280), (120, 654816), (128, 613890), (144, 545680), (152, 516960), (160, 491112), (171, 459520), (180, 436544), (190, 413568), (192, 409260), (228, 344640), (240, 327408), (256, 306945), (285, 275712), (288, 272840), (304, 258480), (320, 245556), (342, 229760), (359, 218880), (360, 218272), (380, 206784), (384, 204630), (456, 172320), (480, 163704), (570, 137856), (576, 136420), (608, 129240), (640, 122778), (684, 114880), (718, 109440), (720, 109136), (760, 103392), (768, 102315), (855, 91904), (912, 86160), (960, 81852), (1077, 72960), (1140, 68928), (1152, 68210), (1216, 64620), (1280, 61389), (1368, 57440), (1436, 54720), (1440, 54568), (1520, 51696), (1710, 45952), (1795, 43776), (1824, 43080), (1920, 40926), (2154, 36480), (2280, 34464), (2304, 34105), (2432, 32310), (2736, 28720), (2872, 27360), (2880, 27284), (3040, 25848), (3231, 24320), (3420, 22976), (3590, 21888), (3648, 21540), (3840, 20463), (4308, 18240), (4560, 17232), (4864, 16155), (5385, 14592), (5472, 14360), (5744, 13680), (5760, 13642), (6080, 12924), (6462, 12160), (6821, 11520), (6840, 11488), (7180, 10944), (7296, 10770), (8616, 9120)]