20401300

素因数分解:

$2^2\times 5^2\times {\mathrm{204013}}^1$

素因数の和:204027

約数の個数: 18

約数和(自身を含む): 44271038

約数和(自身を除く): 23869738

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 204013, 408026, 816052, 1020065, 2040130, 4080260, 5100325, 10200650, 20401300]

約数ペア:

[(1, 20401300), (2, 10200650), (4, 5100325), (5, 4080260), (10, 2040130), (20, 1020065), (25, 816052), (50, 408026), (100, 204013)]