20848030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 44093376

約数和(自身を除く): 23245346

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 157, 245, 271, 314, 490, 542, 785, 1099, 1355, 1570, 1897, 2198, 2710, 3794, 5495, 7693, 9485, 10990, 13279, 15386, 18970, 26558, 38465, 42547, 66395, 76930, 85094, 132790, 212735, 297829, 425470, 595658, 1489145, 2084803, 2978290, 4169606, 10424015, 20848030]

約数ペア:

[(1, 20848030), (2, 10424015), (5, 4169606), (7, 2978290), (10, 2084803), (14, 1489145), (35, 595658), (49, 425470), (70, 297829), (98, 212735), (157, 132790), (245, 85094), (271, 76930), (314, 66395), (490, 42547), (542, 38465), (785, 26558), (1099, 18970), (1355, 15386), (1570, 13279), (1897, 10990), (2198, 9485), (2710, 7693), (3794, 5495)]