19937400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:174

約数の個数: 192

約数和(自身を含む): 72852480

約数和(自身を除く): 52915080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 47, 50, 56, 60, 70, 75, 84, 94, 100, 101, 105, 120, 140, 141, 150, 168, 175, 188, 200, 202, 210, 235, 280, 282, 300, 303, 329, 350, 376, 404, 420, 470, 505, 525, 564, 600, 606, 658, 700, 705, 707, 808, 840, 940, 987, 1010, 1050, 1128, 1175, 1212, 1316, 1400, 1410, 1414, 1515, 1645, 1880, 1974, 2020, 2100, 2121, 2350, 2424, 2525, 2632, 2820, 2828, 3030, 3290, 3525, 3535, 3948, 4040, 4200, 4242, 4700, 4747, 4935, 5050, 5640, 5656, 6060, 6580, 7050, 7070, 7575, 7896, 8225, 8484, 9400, 9494, 9870, 10100, 10605, 12120, 13160, 14100, 14140, 14241, 15150, 16450, 16968, 17675, 18988, 19740, 20200, 21210, 23735, 24675, 28200, 28280, 28482, 30300, 32900, 33229, 35350, 37976, 39480, 42420, 47470, 49350, 53025, 56964, 60600, 65800, 66458, 70700, 71205, 84840, 94940, 98700, 99687, 106050, 113928, 118675, 132916, 141400, 142410, 166145, 189880, 197400, 199374, 212100, 237350, 265832, 284820, 332290, 356025, 398748, 424200, 474700, 498435, 569640, 664580, 712050, 797496, 830725, 949400, 996870, 1329160, 1424100, 1661450, 1993740, 2492175, 2848200, 3322900, 3987480, 4984350, 6645800, 9968700, 19937400]

約数ペア:

[(1, 19937400), (2, 9968700), (3, 6645800), (4, 4984350), (5, 3987480), (6, 3322900), (7, 2848200), (8, 2492175), (10, 1993740), (12, 1661450), (14, 1424100), (15, 1329160), (20, 996870), (21, 949400), (24, 830725), (25, 797496), (28, 712050), (30, 664580), (35, 569640), (40, 498435), (42, 474700), (47, 424200), (50, 398748), (56, 356025), (60, 332290), (70, 284820), (75, 265832), (84, 237350), (94, 212100), (100, 199374), (101, 197400), (105, 189880), (120, 166145), (140, 142410), (141, 141400), (150, 132916), (168, 118675), (175, 113928), (188, 106050), (200, 99687), (202, 98700), (210, 94940), (235, 84840), (280, 71205), (282, 70700), (300, 66458), (303, 65800), (329, 60600), (350, 56964), (376, 53025), (404, 49350), (420, 47470), (470, 42420), (505, 39480), (525, 37976), (564, 35350), (600, 33229), (606, 32900), (658, 30300), (700, 28482), (705, 28280), (707, 28200), (808, 24675), (840, 23735), (940, 21210), (987, 20200), (1010, 19740), (1050, 18988), (1128, 17675), (1175, 16968), (1212, 16450), (1316, 15150), (1400, 14241), (1410, 14140), (1414, 14100), (1515, 13160), (1645, 12120), (1880, 10605), (1974, 10100), (2020, 9870), (2100, 9494), (2121, 9400), (2350, 8484), (2424, 8225), (2525, 7896), (2632, 7575), (2820, 7070), (2828, 7050), (3030, 6580), (3290, 6060), (3525, 5656), (3535, 5640), (3948, 5050), (4040, 4935), (4200, 4747), (4242, 4700)]