67450000

素因数分解:

$2^4\times 5^5\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 120

約数和(自身を含む): 174363840

約数和(自身を除く): 106913840

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 71, 76, 80, 95, 100, 125, 142, 152, 190, 200, 250, 284, 304, 355, 380, 400, 475, 500, 568, 625, 710, 760, 950, 1000, 1136, 1250, 1349, 1420, 1520, 1775, 1900, 2000, 2375, 2500, 2698, 2840, 3125, 3550, 3800, 4750, 5000, 5396, 5680, 6250, 6745, 7100, 7600, 8875, 9500, 10000, 10792, 11875, 12500, 13490, 14200, 17750, 19000, 21584, 23750, 25000, 26980, 28400, 33725, 35500, 38000, 44375, 47500, 50000, 53960, 59375, 67450, 71000, 88750, 95000, 107920, 118750, 134900, 142000, 168625, 177500, 190000, 221875, 237500, 269800, 337250, 355000, 443750, 475000, 539600, 674500, 710000, 843125, 887500, 950000, 1349000, 1686250, 1775000, 2698000, 3372500, 3550000, 4215625, 6745000, 8431250, 13490000, 16862500, 33725000, 67450000]

約数ペア:

[(1, 67450000), (2, 33725000), (4, 16862500), (5, 13490000), (8, 8431250), (10, 6745000), (16, 4215625), (19, 3550000), (20, 3372500), (25, 2698000), (38, 1775000), (40, 1686250), (50, 1349000), (71, 950000), (76, 887500), (80, 843125), (95, 710000), (100, 674500), (125, 539600), (142, 475000), (152, 443750), (190, 355000), (200, 337250), (250, 269800), (284, 237500), (304, 221875), (355, 190000), (380, 177500), (400, 168625), (475, 142000), (500, 134900), (568, 118750), (625, 107920), (710, 95000), (760, 88750), (950, 71000), (1000, 67450), (1136, 59375), (1250, 53960), (1349, 50000), (1420, 47500), (1520, 44375), (1775, 38000), (1900, 35500), (2000, 33725), (2375, 28400), (2500, 26980), (2698, 25000), (2840, 23750), (3125, 21584), (3550, 19000), (3800, 17750), (4750, 14200), (5000, 13490), (5396, 12500), (5680, 11875), (6250, 10792), (6745, 10000), (7100, 9500), (7600, 8875)]