29855980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19387}}^1$

素因数の和:19414

約数の個数: 48

約数和(自身を含む): 78172416

約数和(自身を除く): 48316436

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 19387, 38774, 77548, 96935, 135709, 193870, 213257, 271418, 387740, 426514, 542836, 678545, 853028, 1066285, 1357090, 1492799, 2132570, 2714180, 2985598, 4265140, 5971196, 7463995, 14927990, 29855980]

約数ペア:

[(1, 29855980), (2, 14927990), (4, 7463995), (5, 5971196), (7, 4265140), (10, 2985598), (11, 2714180), (14, 2132570), (20, 1492799), (22, 1357090), (28, 1066285), (35, 853028), (44, 678545), (55, 542836), (70, 426514), (77, 387740), (110, 271418), (140, 213257), (154, 193870), (220, 135709), (308, 96935), (385, 77548), (770, 38774), (1540, 19387)]