19994270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2239}}^1$

素因数の和:2312

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 18712930

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 470, 893, 1786, 2239, 4465, 4478, 8930, 11195, 22390, 42541, 85082, 105233, 210466, 212705, 425410, 526165, 1052330, 1999427, 3998854, 9997135, 19994270]

約数ペア:

[(1, 19994270), (2, 9997135), (5, 3998854), (10, 1999427), (19, 1052330), (38, 526165), (47, 425410), (94, 212705), (95, 210466), (190, 105233), (235, 85082), (470, 42541), (893, 22390), (1786, 11195), (2239, 8930), (4465, 4478)]