8726420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 19145280

約数和(自身を除く): 10418860

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 139, 146, 172, 215, 278, 292, 365, 430, 556, 695, 730, 860, 1390, 1460, 2780, 3139, 5977, 6278, 10147, 11954, 12556, 15695, 20294, 23908, 29885, 31390, 40588, 50735, 59770, 62780, 101470, 119540, 202940, 436321, 872642, 1745284, 2181605, 4363210, 8726420]

約数ペア:

[(1, 8726420), (2, 4363210), (4, 2181605), (5, 1745284), (10, 872642), (20, 436321), (43, 202940), (73, 119540), (86, 101470), (139, 62780), (146, 59770), (172, 50735), (215, 40588), (278, 31390), (292, 29885), (365, 23908), (430, 20294), (556, 15695), (695, 12556), (730, 11954), (860, 10147), (1390, 6278), (1460, 5977), (2780, 3139)]