1388973740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{901931}}^1$

素因数の和:901958

約数の個数: 48

約数和(自身を含む): 3636589824

約数和(自身を除く): 2247616084

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, 901931, 1803862, 3607724, 4509655, 6313517, 9019310, 9921241, 12627034, 18038620, 19842482, 25254068, 31567585, 39684964, 49606205, 63135170, 69448687, 99212410, 126270340, 138897374, 198424820, 277794748, 347243435, 694486870, 1388973740]

約数ペア:

[(1, 1388973740), (2, 694486870), (4, 347243435), (5, 277794748), (7, 198424820), (10, 138897374), (11, 126270340), (14, 99212410), (20, 69448687), (22, 63135170), (28, 49606205), (35, 39684964), (44, 31567585), (55, 25254068), (70, 19842482), (77, 18038620), (110, 12627034), (140, 9921241), (154, 9019310), (220, 6313517), (308, 4509655), (385, 3607724), (770, 1803862), (1540, 901931)]