19979400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:164

約数の個数: 192

約数和(自身を含む): 72852480

約数和(自身を除く): 52873080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 67, 70, 71, 75, 84, 100, 105, 120, 134, 140, 142, 150, 168, 175, 200, 201, 210, 213, 268, 280, 284, 300, 335, 350, 355, 402, 420, 426, 469, 497, 525, 536, 568, 600, 670, 700, 710, 804, 840, 852, 938, 994, 1005, 1050, 1065, 1340, 1400, 1407, 1420, 1491, 1608, 1675, 1704, 1775, 1876, 1988, 2010, 2100, 2130, 2345, 2485, 2680, 2814, 2840, 2982, 3350, 3550, 3752, 3976, 4020, 4200, 4260, 4690, 4757, 4970, 5025, 5325, 5628, 5964, 6700, 7035, 7100, 7455, 8040, 8520, 9380, 9514, 9940, 10050, 10650, 11256, 11725, 11928, 12425, 13400, 14070, 14200, 14271, 14910, 18760, 19028, 19880, 20100, 21300, 23450, 23785, 24850, 28140, 28542, 29820, 33299, 35175, 37275, 38056, 40200, 42600, 46900, 47570, 49700, 56280, 57084, 59640, 66598, 70350, 71355, 74550, 93800, 95140, 99400, 99897, 114168, 118925, 133196, 140700, 142710, 149100, 166495, 190280, 199794, 237850, 266392, 281400, 285420, 298200, 332990, 356775, 399588, 475700, 499485, 570840, 665980, 713550, 799176, 832475, 951400, 998970, 1331960, 1427100, 1664950, 1997940, 2497425, 2854200, 3329900, 3995880, 4994850, 6659800, 9989700, 19979400]

約数ペア:

[(1, 19979400), (2, 9989700), (3, 6659800), (4, 4994850), (5, 3995880), (6, 3329900), (7, 2854200), (8, 2497425), (10, 1997940), (12, 1664950), (14, 1427100), (15, 1331960), (20, 998970), (21, 951400), (24, 832475), (25, 799176), (28, 713550), (30, 665980), (35, 570840), (40, 499485), (42, 475700), (50, 399588), (56, 356775), (60, 332990), (67, 298200), (70, 285420), (71, 281400), (75, 266392), (84, 237850), (100, 199794), (105, 190280), (120, 166495), (134, 149100), (140, 142710), (142, 140700), (150, 133196), (168, 118925), (175, 114168), (200, 99897), (201, 99400), (210, 95140), (213, 93800), (268, 74550), (280, 71355), (284, 70350), (300, 66598), (335, 59640), (350, 57084), (355, 56280), (402, 49700), (420, 47570), (426, 46900), (469, 42600), (497, 40200), (525, 38056), (536, 37275), (568, 35175), (600, 33299), (670, 29820), (700, 28542), (710, 28140), (804, 24850), (840, 23785), (852, 23450), (938, 21300), (994, 20100), (1005, 19880), (1050, 19028), (1065, 18760), (1340, 14910), (1400, 14271), (1407, 14200), (1420, 14070), (1491, 13400), (1608, 12425), (1675, 11928), (1704, 11725), (1775, 11256), (1876, 10650), (1988, 10050), (2010, 9940), (2100, 9514), (2130, 9380), (2345, 8520), (2485, 8040), (2680, 7455), (2814, 7100), (2840, 7035), (2982, 6700), (3350, 5964), (3550, 5628), (3752, 5325), (3976, 5025), (4020, 4970), (4200, 4757), (4260, 4690)]