521070340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3721931}}^1$

素因数の和:3721947

約数の個数: 24

約数和(自身を含む): 1250569152

約数和(自身を除く): 729498812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3721931, 7443862, 14887724, 18609655, 26053517, 37219310, 52107034, 74438620, 104214068, 130267585, 260535170, 521070340]

約数ペア:

[(1, 521070340), (2, 260535170), (4, 130267585), (5, 104214068), (7, 74438620), (10, 52107034), (14, 37219310), (20, 26053517), (28, 18609655), (35, 14887724), (70, 7443862), (140, 3721931)]