39840140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 87901632

約数和(自身を除く): 48061492

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 257, 337, 460, 514, 674, 1028, 1285, 1348, 1685, 2570, 3370, 5140, 5911, 6740, 7751, 11822, 15502, 23644, 29555, 31004, 38755, 59110, 77510, 86609, 118220, 155020, 173218, 346436, 433045, 866090, 1732180, 1992007, 3984014, 7968028, 9960035, 19920070, 39840140]

約数ペア:

[(1, 39840140), (2, 19920070), (4, 9960035), (5, 7968028), (10, 3984014), (20, 1992007), (23, 1732180), (46, 866090), (92, 433045), (115, 346436), (230, 173218), (257, 155020), (337, 118220), (460, 86609), (514, 77510), (674, 59110), (1028, 38755), (1285, 31004), (1348, 29555), (1685, 23644), (2570, 15502), (3370, 11822), (5140, 7751), (5911, 6740)]