199973870

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{645077}}^1$

素因数の和:645115

約数の個数: 16

約数和(自身を含む): 371564928

約数和(自身を除く): 171591058

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 645077, 1290154, 3225385, 6450770, 19997387, 39994774, 99986935, 199973870]

約数ペア:

[(1, 199973870), (2, 99986935), (5, 39994774), (10, 19997387), (31, 6450770), (62, 3225385), (155, 1290154), (310, 645077)]