39139720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 91238400

約数和(自身を除く): 52098680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 109, 188, 191, 218, 235, 376, 382, 436, 470, 545, 764, 872, 940, 955, 1090, 1528, 1880, 1910, 2180, 3820, 4360, 5123, 7640, 8977, 10246, 17954, 20492, 20819, 25615, 35908, 40984, 41638, 44885, 51230, 71816, 83276, 89770, 102460, 104095, 166552, 179540, 204920, 208190, 359080, 416380, 832760, 978493, 1956986, 3913972, 4892465, 7827944, 9784930, 19569860, 39139720]

約数ペア:

[(1, 39139720), (2, 19569860), (4, 9784930), (5, 7827944), (8, 4892465), (10, 3913972), (20, 1956986), (40, 978493), (47, 832760), (94, 416380), (109, 359080), (188, 208190), (191, 204920), (218, 179540), (235, 166552), (376, 104095), (382, 102460), (436, 89770), (470, 83276), (545, 71816), (764, 51230), (872, 44885), (940, 41638), (955, 40984), (1090, 35908), (1528, 25615), (1880, 20819), (1910, 20492), (2180, 17954), (3820, 10246), (4360, 8977), (5123, 7640)]