80853920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10313}}^1$

素因数の和:10342

約数の個数: 72

約数和(自身を含む): 222225444

約数和(自身を除く): 141371524

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10313, 20626, 41252, 51565, 72191, 82504, 103130, 144382, 165008, 206260, 288764, 330016, 360955, 412520, 505337, 577528, 721910, 825040, 1010674, 1155056, 1443820, 1650080, 2021348, 2310112, 2526685, 2887640, 4042696, 5053370, 5775280, 8085392, 10106740, 11550560, 16170784, 20213480, 40426960, 80853920]

約数ペア:

[(1, 80853920), (2, 40426960), (4, 20213480), (5, 16170784), (7, 11550560), (8, 10106740), (10, 8085392), (14, 5775280), (16, 5053370), (20, 4042696), (28, 2887640), (32, 2526685), (35, 2310112), (40, 2021348), (49, 1650080), (56, 1443820), (70, 1155056), (80, 1010674), (98, 825040), (112, 721910), (140, 577528), (160, 505337), (196, 412520), (224, 360955), (245, 330016), (280, 288764), (392, 206260), (490, 165008), (560, 144382), (784, 103130), (980, 82504), (1120, 72191), (1568, 51565), (1960, 41252), (3920, 20626), (7840, 10313)]