12892840

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2053}}^1$

素因数の和:2221

約数の個数: 32

約数和(自身を含む): 29207880

約数和(自身を除く): 16315040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 2053, 3140, 4106, 6280, 8212, 10265, 16424, 20530, 41060, 82120, 322321, 644642, 1289284, 1611605, 2578568, 3223210, 6446420, 12892840]

約数ペア:

[(1, 12892840), (2, 6446420), (4, 3223210), (5, 2578568), (8, 1611605), (10, 1289284), (20, 644642), (40, 322321), (157, 82120), (314, 41060), (628, 20530), (785, 16424), (1256, 10265), (1570, 8212), (2053, 6280), (3140, 4106)]