15755780

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1229}}^1$

素因数の和:1879

約数の個数: 24

約数和(自身を含む): 33165720

約数和(自身を除く): 17409940

約数列:

[1, 2, 4, 5, 10, 20, 641, 1229, 1282, 2458, 2564, 3205, 4916, 6145, 6410, 12290, 12820, 24580, 787789, 1575578, 3151156, 3938945, 7877890, 15755780]

約数ペア:

[(1, 15755780), (2, 7877890), (4, 3938945), (5, 3151156), (10, 1575578), (20, 787789), (641, 24580), (1229, 12820), (1282, 12290), (2458, 6410), (2564, 6145), (3205, 4916)]