218950760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{781967}}^1$

素因数の和:781985

約数の個数: 32

約数和(自身を含む): 563016960

約数和(自身を除く): 344066200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 781967, 1563934, 3127868, 3909835, 5473769, 6255736, 7819670, 10947538, 15639340, 21895076, 27368845, 31278680, 43790152, 54737690, 109475380, 218950760]

約数ペア:

[(1, 218950760), (2, 109475380), (4, 54737690), (5, 43790152), (7, 31278680), (8, 27368845), (10, 21895076), (14, 15639340), (20, 10947538), (28, 7819670), (35, 6255736), (40, 5473769), (56, 3909835), (70, 3127868), (140, 1563934), (280, 781967)]