19589780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8231}}^1$

素因数の和:8264

約数の個数: 48

約数和(自身を含む): 49787136

約数和(自身を除く): 30197356

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 8231, 16462, 32924, 41155, 57617, 82310, 115234, 139927, 164620, 230468, 279854, 288085, 559708, 576170, 699635, 979489, 1152340, 1399270, 1958978, 2798540, 3917956, 4897445, 9794890, 19589780]

約数ペア:

[(1, 19589780), (2, 9794890), (4, 4897445), (5, 3917956), (7, 2798540), (10, 1958978), (14, 1399270), (17, 1152340), (20, 979489), (28, 699635), (34, 576170), (35, 559708), (68, 288085), (70, 279854), (85, 230468), (119, 164620), (140, 139927), (170, 115234), (238, 82310), (340, 57617), (476, 41155), (595, 32924), (1190, 16462), (2380, 8231)]