68405680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:203

約数の個数: 160

約数和(自身を含む): 195416064

約数和(自身を除く): 127010384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 47, 56, 70, 80, 92, 94, 112, 113, 115, 140, 161, 184, 188, 226, 230, 235, 280, 322, 329, 368, 376, 452, 460, 470, 560, 565, 644, 658, 752, 791, 805, 904, 920, 940, 1081, 1130, 1288, 1316, 1582, 1610, 1645, 1808, 1840, 1880, 2162, 2260, 2576, 2599, 2632, 3164, 3220, 3290, 3760, 3955, 4324, 4520, 5198, 5264, 5311, 5405, 6328, 6440, 6580, 7567, 7910, 8648, 9040, 10396, 10622, 10810, 12656, 12880, 12995, 13160, 15134, 15820, 17296, 18193, 20792, 21244, 21620, 25990, 26320, 26555, 30268, 31640, 36386, 37177, 37835, 41584, 42488, 43240, 51980, 53110, 60536, 63280, 72772, 74354, 75670, 84976, 86480, 90965, 103960, 106220, 121072, 122153, 145544, 148708, 151340, 181930, 185885, 207920, 212440, 244306, 291088, 297416, 302680, 363860, 371770, 424880, 488612, 594832, 605360, 610765, 727720, 743540, 855071, 977224, 1221530, 1455440, 1487080, 1710142, 1954448, 2443060, 2974160, 3420284, 4275355, 4886120, 6840568, 8550710, 9772240, 13681136, 17101420, 34202840, 68405680]

約数ペア:

[(1, 68405680), (2, 34202840), (4, 17101420), (5, 13681136), (7, 9772240), (8, 8550710), (10, 6840568), (14, 4886120), (16, 4275355), (20, 3420284), (23, 2974160), (28, 2443060), (35, 1954448), (40, 1710142), (46, 1487080), (47, 1455440), (56, 1221530), (70, 977224), (80, 855071), (92, 743540), (94, 727720), (112, 610765), (113, 605360), (115, 594832), (140, 488612), (161, 424880), (184, 371770), (188, 363860), (226, 302680), (230, 297416), (235, 291088), (280, 244306), (322, 212440), (329, 207920), (368, 185885), (376, 181930), (452, 151340), (460, 148708), (470, 145544), (560, 122153), (565, 121072), (644, 106220), (658, 103960), (752, 90965), (791, 86480), (805, 84976), (904, 75670), (920, 74354), (940, 72772), (1081, 63280), (1130, 60536), (1288, 53110), (1316, 51980), (1582, 43240), (1610, 42488), (1645, 41584), (1808, 37835), (1840, 37177), (1880, 36386), (2162, 31640), (2260, 30268), (2576, 26555), (2599, 26320), (2632, 25990), (3164, 21620), (3220, 21244), (3290, 20792), (3760, 18193), (3955, 17296), (4324, 15820), (4520, 15134), (5198, 13160), (5264, 12995), (5311, 12880), (5405, 12656), (6328, 10810), (6440, 10622), (6580, 10396), (7567, 9040), (7910, 8648)]