19799120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:324

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 31090480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 149, 151, 176, 220, 298, 302, 440, 596, 604, 745, 755, 880, 1192, 1208, 1490, 1510, 1639, 1661, 2384, 2416, 2980, 3020, 3278, 3322, 5960, 6040, 6556, 6644, 8195, 8305, 11920, 12080, 13112, 13288, 16390, 16610, 22499, 26224, 26576, 32780, 33220, 44998, 65560, 66440, 89996, 112495, 131120, 132880, 179992, 224990, 247489, 359984, 449980, 494978, 899960, 989956, 1237445, 1799920, 1979912, 2474890, 3959824, 4949780, 9899560, 19799120]

約数ペア:

[(1, 19799120), (2, 9899560), (4, 4949780), (5, 3959824), (8, 2474890), (10, 1979912), (11, 1799920), (16, 1237445), (20, 989956), (22, 899960), (40, 494978), (44, 449980), (55, 359984), (80, 247489), (88, 224990), (110, 179992), (149, 132880), (151, 131120), (176, 112495), (220, 89996), (298, 66440), (302, 65560), (440, 44998), (596, 33220), (604, 32780), (745, 26576), (755, 26224), (880, 22499), (1192, 16610), (1208, 16390), (1490, 13288), (1510, 13112), (1639, 12080), (1661, 11920), (2384, 8305), (2416, 8195), (2980, 6644), (3020, 6556), (3278, 6040), (3322, 5960)]