85778860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{4463}}^1$

素因数の和:4534

約数の個数: 36

約数和(自身を含む): 186175584

約数和(自身を除く): 100396724

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4463, 4805, 8926, 9610, 17852, 19220, 22315, 44630, 89260, 138353, 276706, 553412, 691765, 1383530, 2767060, 4288943, 8577886, 17155772, 21444715, 42889430, 85778860]

約数ペア:

[(1, 85778860), (2, 42889430), (4, 21444715), (5, 17155772), (10, 8577886), (20, 4288943), (31, 2767060), (62, 1383530), (124, 691765), (155, 553412), (310, 276706), (620, 138353), (961, 89260), (1922, 44630), (3844, 22315), (4463, 19220), (4805, 17852), (8926, 9610)]