2017800005

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^3$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 2795420160

約数和(自身を除く): 777620155

約数列:

[1, 5, 13, 23, 47, 65, 115, 169, 235, 299, 611, 845, 1081, 1495, 2209, 3055, 3887, 5405, 7943, 11045, 14053, 19435, 28717, 39715, 50807, 70265, 103823, 143585, 182689, 254035, 373321, 519115, 660491, 913445, 1349699, 1866605, 2387929, 3302455, 6748495, 8586383, 11939645, 17546087, 31043077, 42931915, 87730435, 155215385, 403560001, 2017800005]

約数ペア:

[(1, 2017800005), (5, 403560001), (13, 155215385), (23, 87730435), (47, 42931915), (65, 31043077), (115, 17546087), (169, 11939645), (235, 8586383), (299, 6748495), (611, 3302455), (845, 2387929), (1081, 1866605), (1495, 1349699), (2209, 913445), (3055, 660491), (3887, 519115), (5405, 373321), (7943, 254035), (11045, 182689), (14053, 143585), (19435, 103823), (28717, 70265), (39715, 50807)]