16326940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{839}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 23186660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 839, 973, 1390, 1678, 1946, 2780, 3356, 3892, 4195, 4865, 5873, 8390, 9730, 11746, 16780, 19460, 23492, 29365, 58730, 116621, 117460, 233242, 466484, 583105, 816347, 1166210, 1632694, 2332420, 3265388, 4081735, 8163470, 16326940]

約数ペア:

[(1, 16326940), (2, 8163470), (4, 4081735), (5, 3265388), (7, 2332420), (10, 1632694), (14, 1166210), (20, 816347), (28, 583105), (35, 466484), (70, 233242), (139, 117460), (140, 116621), (278, 58730), (556, 29365), (695, 23492), (839, 19460), (973, 16780), (1390, 11746), (1678, 9730), (1946, 8390), (2780, 5873), (3356, 4865), (3892, 4195)]