155964440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{90677}}^1$

素因数の和:90731

約数の個数: 32

約数和(自身を含む): 359084880

約数和(自身を除く): 203120440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 90677, 181354, 362708, 453385, 725416, 906770, 1813540, 3627080, 3899111, 7798222, 15596444, 19495555, 31192888, 38991110, 77982220, 155964440]

約数ペア:

[(1, 155964440), (2, 77982220), (4, 38991110), (5, 31192888), (8, 19495555), (10, 15596444), (20, 7798222), (40, 3899111), (43, 3627080), (86, 1813540), (172, 906770), (215, 725416), (344, 453385), (430, 362708), (860, 181354), (1720, 90677)]