20193065180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{71399}}^1$

素因数の和:71666

約数の個数: 48

約数和(自身を含む): 43182720000

約数和(自身を除く): 22989654820

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 179, 316, 358, 395, 716, 790, 895, 1580, 1790, 3580, 14141, 28282, 56564, 70705, 71399, 141410, 142798, 282820, 285596, 356995, 713990, 1427980, 5640521, 11281042, 12780421, 22562084, 25560842, 28202605, 51121684, 56405210, 63902105, 112810420, 127804210, 255608420, 1009653259, 2019306518, 4038613036, 5048266295, 10096532590, 20193065180]

約数ペア:

[(1, 20193065180), (2, 10096532590), (4, 5048266295), (5, 4038613036), (10, 2019306518), (20, 1009653259), (79, 255608420), (158, 127804210), (179, 112810420), (316, 63902105), (358, 56405210), (395, 51121684), (716, 28202605), (790, 25560842), (895, 22562084), (1580, 12780421), (1790, 11281042), (3580, 5640521), (14141, 1427980), (28282, 713990), (56564, 356995), (70705, 285596), (71399, 282820), (141410, 142798)]