39988540

素因数分解:

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

素因数の和:2314

約数の個数: 48

約数和(自身を含む): 90316800

約数和(自身を除く): 50328260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 2239, 3572, 4465, 4478, 8930, 8956, 11195, 17860, 22390, 42541, 44780, 85082, 105233, 170164, 210466, 212705, 420932, 425410, 526165, 850820, 1052330, 1999427, 2104660, 3998854, 7997708, 9997135, 19994270, 39988540]

約数ペア:

[(1, 39988540), (2, 19994270), (4, 9997135), (5, 7997708), (10, 3998854), (19, 2104660), (20, 1999427), (38, 1052330), (47, 850820), (76, 526165), (94, 425410), (95, 420932), (188, 212705), (190, 210466), (235, 170164), (380, 105233), (470, 85082), (893, 44780), (940, 42541), (1786, 22390), (2239, 17860), (3572, 11195), (4465, 8956), (4478, 8930)]