82820221420

素因数分解:

$2^2\times 5^1\times {\mathrm{39749}}^1\times {\mathrm{104179}}^1$

素因数の和:143937

約数の個数: 24

約数和(自身を含む): 173928510000

約数和(自身を除く): 91108288580

約数列:

[1, 2, 4, 5, 10, 20, 39749, 79498, 104179, 158996, 198745, 208358, 397490, 416716, 520895, 794980, 1041790, 2083580, 4141011071, 8282022142, 16564044284, 20705055355, 41410110710, 82820221420]

約数ペア:

[(1, 82820221420), (2, 41410110710), (4, 20705055355), (5, 16564044284), (10, 8282022142), (20, 4141011071), (39749, 2083580), (79498, 1041790), (104179, 794980), (158996, 520895), (198745, 416716), (208358, 397490)]