690340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4931}}^1$

素因数の和:4947

約数の個数: 24

約数和(自身を含む): 1657152

約数和(自身を除く): 966812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4931, 9862, 19724, 24655, 34517, 49310, 69034, 98620, 138068, 172585, 345170, 690340]

約数ペア:

[(1, 690340), (2, 345170), (4, 172585), (5, 138068), (7, 98620), (10, 69034), (14, 49310), (20, 34517), (28, 24655), (35, 19724), (70, 9862), (140, 4931)]