200018890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1052731}}^1$

素因数の和:1052757

約数の個数: 16

約数和(自身を含む): 378983520

約数和(自身を除く): 178964630

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1052731, 2105462, 5263655, 10527310, 20001889, 40003778, 100009445, 200018890]

約数ペア:

[(1, 200018890), (2, 100009445), (5, 40003778), (10, 20001889), (19, 10527310), (38, 5263655), (95, 2105462), (190, 1052731)]