31723120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 160

約数和(自身を含む): 89994240

約数和(自身を除く): 58271120

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 47, 52, 55, 59, 65, 80, 88, 94, 104, 110, 118, 130, 143, 176, 188, 208, 220, 235, 236, 260, 286, 295, 376, 440, 470, 472, 517, 520, 572, 590, 611, 649, 715, 752, 767, 880, 940, 944, 1034, 1040, 1144, 1180, 1222, 1298, 1430, 1534, 1880, 2068, 2288, 2360, 2444, 2585, 2596, 2773, 2860, 3055, 3068, 3245, 3760, 3835, 4136, 4720, 4888, 5170, 5192, 5546, 5720, 6110, 6136, 6490, 6721, 7670, 8272, 8437, 9776, 10340, 10384, 11092, 11440, 12220, 12272, 12980, 13442, 13865, 15340, 16874, 20680, 22184, 24440, 25960, 26884, 27730, 30503, 30680, 33605, 33748, 36049, 41360, 42185, 44368, 48880, 51920, 53768, 55460, 61006, 61360, 67210, 67496, 72098, 84370, 107536, 110920, 122012, 134420, 134992, 144196, 152515, 168740, 180245, 221840, 244024, 268840, 288392, 305030, 337480, 360490, 396539, 488048, 537680, 576784, 610060, 674960, 720980, 793078, 1220120, 1441960, 1586156, 1982695, 2440240, 2883920, 3172312, 3965390, 6344624, 7930780, 15861560, 31723120]

約数ペア:

[(1, 31723120), (2, 15861560), (4, 7930780), (5, 6344624), (8, 3965390), (10, 3172312), (11, 2883920), (13, 2440240), (16, 1982695), (20, 1586156), (22, 1441960), (26, 1220120), (40, 793078), (44, 720980), (47, 674960), (52, 610060), (55, 576784), (59, 537680), (65, 488048), (80, 396539), (88, 360490), (94, 337480), (104, 305030), (110, 288392), (118, 268840), (130, 244024), (143, 221840), (176, 180245), (188, 168740), (208, 152515), (220, 144196), (235, 134992), (236, 134420), (260, 122012), (286, 110920), (295, 107536), (376, 84370), (440, 72098), (470, 67496), (472, 67210), (517, 61360), (520, 61006), (572, 55460), (590, 53768), (611, 51920), (649, 48880), (715, 44368), (752, 42185), (767, 41360), (880, 36049), (940, 33748), (944, 33605), (1034, 30680), (1040, 30503), (1144, 27730), (1180, 26884), (1222, 25960), (1298, 24440), (1430, 22184), (1534, 20680), (1880, 16874), (2068, 15340), (2288, 13865), (2360, 13442), (2444, 12980), (2585, 12272), (2596, 12220), (2773, 11440), (2860, 11092), (3055, 10384), (3068, 10340), (3245, 9776), (3760, 8437), (3835, 8272), (4136, 7670), (4720, 6721), (4888, 6490), (5170, 6136), (5192, 6110), (5546, 5720)]