19802848

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{263}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 42378336

約数和(自身を除く): 22575488

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 181, 208, 263, 362, 416, 526, 724, 1052, 1448, 2104, 2353, 2896, 3419, 4208, 4706, 5792, 6838, 8416, 9412, 13676, 18824, 27352, 37648, 47603, 54704, 75296, 95206, 109408, 190412, 380824, 618839, 761648, 1237678, 1523296, 2475356, 4950712, 9901424, 19802848]

約数ペア:

[(1, 19802848), (2, 9901424), (4, 4950712), (8, 2475356), (13, 1523296), (16, 1237678), (26, 761648), (32, 618839), (52, 380824), (104, 190412), (181, 109408), (208, 95206), (263, 75296), (362, 54704), (416, 47603), (526, 37648), (724, 27352), (1052, 18824), (1448, 13676), (2104, 9412), (2353, 8416), (2896, 6838), (3419, 5792), (4208, 4706)]