811960

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 1866240

約数和(自身を除く): 1054280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 383, 424, 530, 766, 1060, 1532, 1915, 2120, 3064, 3830, 7660, 15320, 20299, 40598, 81196, 101495, 162392, 202990, 405980, 811960]

約数ペア:

[(1, 811960), (2, 405980), (4, 202990), (5, 162392), (8, 101495), (10, 81196), (20, 40598), (40, 20299), (53, 15320), (106, 7660), (212, 3830), (265, 3064), (383, 2120), (424, 1915), (530, 1532), (766, 1060)]