19717440

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:109

約数の個数: 224

約数和(自身を含む): 70225920

約数和(自身を除く): 50508480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 32, 38, 40, 46, 47, 48, 57, 60, 64, 69, 76, 80, 92, 94, 95, 96, 114, 115, 120, 138, 141, 152, 160, 184, 188, 190, 192, 228, 230, 235, 240, 276, 282, 285, 304, 320, 345, 368, 376, 380, 437, 456, 460, 470, 480, 552, 564, 570, 608, 690, 705, 736, 752, 760, 874, 893, 912, 920, 940, 960, 1081, 1104, 1128, 1140, 1216, 1311, 1380, 1410, 1472, 1504, 1520, 1748, 1786, 1824, 1840, 1880, 2162, 2185, 2208, 2256, 2280, 2622, 2679, 2760, 2820, 3008, 3040, 3243, 3496, 3572, 3648, 3680, 3760, 4324, 4370, 4416, 4465, 4512, 4560, 5244, 5358, 5405, 5520, 5640, 6080, 6486, 6555, 6992, 7144, 7360, 7520, 8648, 8740, 8930, 9024, 9120, 10488, 10716, 10810, 11040, 11280, 12972, 13110, 13395, 13984, 14288, 15040, 16215, 17296, 17480, 17860, 18240, 20539, 20976, 21432, 21620, 22080, 22560, 25944, 26220, 26790, 27968, 28576, 32430, 34592, 34960, 35720, 41078, 41952, 42864, 43240, 45120, 51888, 52440, 53580, 57152, 61617, 64860, 69184, 69920, 71440, 82156, 83904, 85728, 86480, 102695, 103776, 104880, 107160, 123234, 129720, 139840, 142880, 164312, 171456, 172960, 205390, 207552, 209760, 214320, 246468, 259440, 285760, 308085, 328624, 345920, 410780, 419520, 428640, 492936, 518880, 616170, 657248, 821560, 857280, 985872, 1037760, 1232340, 1314496, 1643120, 1971744, 2464680, 3286240, 3943488, 4929360, 6572480, 9858720, 19717440]

約数ペア:

[(1, 19717440), (2, 9858720), (3, 6572480), (4, 4929360), (5, 3943488), (6, 3286240), (8, 2464680), (10, 1971744), (12, 1643120), (15, 1314496), (16, 1232340), (19, 1037760), (20, 985872), (23, 857280), (24, 821560), (30, 657248), (32, 616170), (38, 518880), (40, 492936), (46, 428640), (47, 419520), (48, 410780), (57, 345920), (60, 328624), (64, 308085), (69, 285760), (76, 259440), (80, 246468), (92, 214320), (94, 209760), (95, 207552), (96, 205390), (114, 172960), (115, 171456), (120, 164312), (138, 142880), (141, 139840), (152, 129720), (160, 123234), (184, 107160), (188, 104880), (190, 103776), (192, 102695), (228, 86480), (230, 85728), (235, 83904), (240, 82156), (276, 71440), (282, 69920), (285, 69184), (304, 64860), (320, 61617), (345, 57152), (368, 53580), (376, 52440), (380, 51888), (437, 45120), (456, 43240), (460, 42864), (470, 41952), (480, 41078), (552, 35720), (564, 34960), (570, 34592), (608, 32430), (690, 28576), (705, 27968), (736, 26790), (752, 26220), (760, 25944), (874, 22560), (893, 22080), (912, 21620), (920, 21432), (940, 20976), (960, 20539), (1081, 18240), (1104, 17860), (1128, 17480), (1140, 17296), (1216, 16215), (1311, 15040), (1380, 14288), (1410, 13984), (1472, 13395), (1504, 13110), (1520, 12972), (1748, 11280), (1786, 11040), (1824, 10810), (1840, 10716), (1880, 10488), (2162, 9120), (2185, 9024), (2208, 8930), (2256, 8740), (2280, 8648), (2622, 7520), (2679, 7360), (2760, 7144), (2820, 6992), (3008, 6555), (3040, 6486), (3243, 6080), (3496, 5640), (3572, 5520), (3648, 5405), (3680, 5358), (3760, 5244), (4324, 4560), (4370, 4512), (4416, 4465)]