311938240

素因数分解:

$2^6\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7013}}^1$

素因数の和:7169

約数の個数: 56

約数和(自身を含む): 748253520

約数和(自身を除く): 436315280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 139, 160, 278, 320, 556, 695, 1112, 1390, 2224, 2780, 4448, 5560, 7013, 8896, 11120, 14026, 22240, 28052, 35065, 44480, 56104, 70130, 112208, 140260, 224416, 280520, 448832, 561040, 974807, 1122080, 1949614, 2244160, 3899228, 4874035, 7798456, 9748070, 15596912, 19496140, 31193824, 38992280, 62387648, 77984560, 155969120, 311938240]

約数ペア:

[(1, 311938240), (2, 155969120), (4, 77984560), (5, 62387648), (8, 38992280), (10, 31193824), (16, 19496140), (20, 15596912), (32, 9748070), (40, 7798456), (64, 4874035), (80, 3899228), (139, 2244160), (160, 1949614), (278, 1122080), (320, 974807), (556, 561040), (695, 448832), (1112, 280520), (1390, 224416), (2224, 140260), (2780, 112208), (4448, 70130), (5560, 56104), (7013, 44480), (8896, 35065), (11120, 28052), (14026, 22240)]