20603030

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2213}}^1$

素因数の和:2253

約数の個数: 48

約数和(自身を含む): 45431280

約数和(自身を除く): 24828250

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 2213, 4426, 4655, 9310, 11065, 15491, 22130, 30982, 42047, 77455, 84094, 108437, 154910, 210235, 216874, 294329, 420470, 542185, 588658, 1084370, 1471645, 2060303, 2943290, 4120606, 10301515, 20603030]

約数ペア:

[(1, 20603030), (2, 10301515), (5, 4120606), (7, 2943290), (10, 2060303), (14, 1471645), (19, 1084370), (35, 588658), (38, 542185), (49, 420470), (70, 294329), (95, 216874), (98, 210235), (133, 154910), (190, 108437), (245, 84094), (266, 77455), (490, 42047), (665, 30982), (931, 22130), (1330, 15491), (1862, 11065), (2213, 9310), (4426, 4655)]