19930340

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7607}}^1$

素因数の和:7747

約数の個数: 24

約数和(自身を含む): 42178752

約数和(自身を除く): 22248412

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7607, 15214, 30428, 38035, 76070, 152140, 996517, 1993034, 3986068, 4982585, 9965170, 19930340]

約数ペア:

[(1, 19930340), (2, 9965170), (4, 4982585), (5, 3986068), (10, 1993034), (20, 996517), (131, 152140), (262, 76070), (524, 38035), (655, 30428), (1310, 15214), (2620, 7607)]