31478720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:107

約数の個数: 224

約数和(自身を含む): 98316288

約数和(自身を除く): 66837568

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 32, 35, 40, 46, 47, 52, 56, 64, 65, 70, 80, 91, 92, 94, 104, 112, 115, 130, 140, 160, 161, 182, 184, 188, 208, 224, 230, 235, 260, 280, 299, 320, 322, 329, 364, 368, 376, 416, 448, 455, 460, 470, 520, 560, 598, 611, 644, 658, 728, 736, 752, 805, 832, 910, 920, 940, 1040, 1081, 1120, 1196, 1222, 1288, 1316, 1456, 1472, 1495, 1504, 1610, 1645, 1820, 1840, 1880, 2080, 2093, 2162, 2240, 2392, 2444, 2576, 2632, 2912, 2990, 3008, 3055, 3220, 3290, 3640, 3680, 3760, 4160, 4186, 4277, 4324, 4784, 4888, 5152, 5264, 5405, 5824, 5980, 6110, 6440, 6580, 7280, 7360, 7520, 7567, 8372, 8554, 8648, 9568, 9776, 10304, 10465, 10528, 10810, 11960, 12220, 12880, 13160, 14053, 14560, 15040, 15134, 16744, 17108, 17296, 19136, 19552, 20930, 21056, 21385, 21620, 23920, 24440, 25760, 26320, 28106, 29120, 30268, 33488, 34216, 34592, 37835, 39104, 41860, 42770, 43240, 47840, 48880, 51520, 52640, 56212, 60536, 66976, 68432, 69184, 70265, 75670, 83720, 85540, 86480, 95680, 97760, 98371, 105280, 112424, 121072, 133952, 136864, 140530, 151340, 167440, 171080, 172960, 195520, 196742, 224848, 242144, 273728, 281060, 302680, 334880, 342160, 345920, 393484, 449696, 484288, 491855, 562120, 605360, 669760, 684320, 786968, 899392, 983710, 1124240, 1210720, 1368640, 1573936, 1967420, 2248480, 2421440, 3147872, 3934840, 4496960, 6295744, 7869680, 15739360, 31478720]

約数ペア:

[(1, 31478720), (2, 15739360), (4, 7869680), (5, 6295744), (7, 4496960), (8, 3934840), (10, 3147872), (13, 2421440), (14, 2248480), (16, 1967420), (20, 1573936), (23, 1368640), (26, 1210720), (28, 1124240), (32, 983710), (35, 899392), (40, 786968), (46, 684320), (47, 669760), (52, 605360), (56, 562120), (64, 491855), (65, 484288), (70, 449696), (80, 393484), (91, 345920), (92, 342160), (94, 334880), (104, 302680), (112, 281060), (115, 273728), (130, 242144), (140, 224848), (160, 196742), (161, 195520), (182, 172960), (184, 171080), (188, 167440), (208, 151340), (224, 140530), (230, 136864), (235, 133952), (260, 121072), (280, 112424), (299, 105280), (320, 98371), (322, 97760), (329, 95680), (364, 86480), (368, 85540), (376, 83720), (416, 75670), (448, 70265), (455, 69184), (460, 68432), (470, 66976), (520, 60536), (560, 56212), (598, 52640), (611, 51520), (644, 48880), (658, 47840), (728, 43240), (736, 42770), (752, 41860), (805, 39104), (832, 37835), (910, 34592), (920, 34216), (940, 33488), (1040, 30268), (1081, 29120), (1120, 28106), (1196, 26320), (1222, 25760), (1288, 24440), (1316, 23920), (1456, 21620), (1472, 21385), (1495, 21056), (1504, 20930), (1610, 19552), (1645, 19136), (1820, 17296), (1840, 17108), (1880, 16744), (2080, 15134), (2093, 15040), (2162, 14560), (2240, 14053), (2392, 13160), (2444, 12880), (2576, 12220), (2632, 11960), (2912, 10810), (2990, 10528), (3008, 10465), (3055, 10304), (3220, 9776), (3290, 9568), (3640, 8648), (3680, 8554), (3760, 8372), (4160, 7567), (4186, 7520), (4277, 7360), (4324, 7280), (4784, 6580), (4888, 6440), (5152, 6110), (5264, 5980), (5405, 5824)]