87878840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313853}}^1$

素因数の和:313871

約数の個数: 32

約数和(自身を含む): 225974880

約数和(自身を除く): 138096040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313853, 627706, 1255412, 1569265, 2196971, 2510824, 3138530, 4393942, 6277060, 8787884, 10984855, 12554120, 17575768, 21969710, 43939420, 87878840]

約数ペア:

[(1, 87878840), (2, 43939420), (4, 21969710), (5, 17575768), (7, 12554120), (8, 10984855), (10, 8787884), (14, 6277060), (20, 4393942), (28, 3138530), (35, 2510824), (40, 2196971), (56, 1569265), (70, 1255412), (140, 627706), (280, 313853)]