20712290

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1669}}^1$

素因数の和:1766

約数の個数: 32

約数和(自身を含む): 40039920

約数和(自身を除く): 19327630

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 146, 170, 365, 730, 1241, 1669, 2482, 3338, 6205, 8345, 12410, 16690, 28373, 56746, 121837, 141865, 243674, 283730, 609185, 1218370, 2071229, 4142458, 10356145, 20712290]

約数ペア:

[(1, 20712290), (2, 10356145), (5, 4142458), (10, 2071229), (17, 1218370), (34, 609185), (73, 283730), (85, 243674), (146, 141865), (170, 121837), (365, 56746), (730, 28373), (1241, 16690), (1669, 12410), (2482, 8345), (3338, 6205)]