8918240

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:555

約数の個数: 48

約数和(自身を含む): 21273840

約数和(自身を除く): 12355600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 401, 556, 695, 802, 1112, 1390, 1604, 2005, 2224, 2780, 3208, 4010, 4448, 5560, 6416, 8020, 11120, 12832, 16040, 22240, 32080, 55739, 64160, 111478, 222956, 278695, 445912, 557390, 891824, 1114780, 1783648, 2229560, 4459120, 8918240]

約数ペア:

[(1, 8918240), (2, 4459120), (4, 2229560), (5, 1783648), (8, 1114780), (10, 891824), (16, 557390), (20, 445912), (32, 278695), (40, 222956), (80, 111478), (139, 64160), (160, 55739), (278, 32080), (401, 22240), (556, 16040), (695, 12832), (802, 11120), (1112, 8020), (1390, 6416), (1604, 5560), (2005, 4448), (2224, 4010), (2780, 3208)]