136720780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{139511}}^1$

素因数の和:139534

約数の個数: 36

約数和(自身を含む): 333991728

約数和(自身を除く): 197270948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 139511, 279022, 558044, 697555, 976577, 1395110, 1953154, 2790220, 3906308, 4882885, 6836039, 9765770, 13672078, 19531540, 27344156, 34180195, 68360390, 136720780]

約数ペア:

[(1, 136720780), (2, 68360390), (4, 34180195), (5, 27344156), (7, 19531540), (10, 13672078), (14, 9765770), (20, 6836039), (28, 4882885), (35, 3906308), (49, 2790220), (70, 1953154), (98, 1395110), (140, 976577), (196, 697555), (245, 558044), (490, 279022), (980, 139511)]