221420080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{17191}}^1$

素因数の和:17234

約数の個数: 80

約数和(自身を含む): 613960704

約数和(自身を除く): 392540624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 17191, 34382, 68764, 85955, 120337, 137528, 171910, 240674, 275056, 343820, 395393, 481348, 601685, 687640, 790786, 962696, 1203370, 1375280, 1581572, 1925392, 1976965, 2406740, 2767751, 3163144, 3953930, 4813480, 5535502, 6326288, 7907860, 9626960, 11071004, 13838755, 15815720, 22142008, 27677510, 31631440, 44284016, 55355020, 110710040, 221420080]

約数ペア:

[(1, 221420080), (2, 110710040), (4, 55355020), (5, 44284016), (7, 31631440), (8, 27677510), (10, 22142008), (14, 15815720), (16, 13838755), (20, 11071004), (23, 9626960), (28, 7907860), (35, 6326288), (40, 5535502), (46, 4813480), (56, 3953930), (70, 3163144), (80, 2767751), (92, 2406740), (112, 1976965), (115, 1925392), (140, 1581572), (161, 1375280), (184, 1203370), (230, 962696), (280, 790786), (322, 687640), (368, 601685), (460, 481348), (560, 395393), (644, 343820), (805, 275056), (920, 240674), (1288, 171910), (1610, 137528), (1840, 120337), (2576, 85955), (3220, 68764), (6440, 34382), (12880, 17191)]