405200

素因数分解:

$2^4\times 5^2\times {\mathrm{1013}}^1$

素因数の和:1031

約数の個数: 30

約数和(自身を含む): 974454

約数和(自身を除く): 569254

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1013, 2026, 4052, 5065, 8104, 10130, 16208, 20260, 25325, 40520, 50650, 81040, 101300, 202600, 405200]

約数ペア:

[(1, 405200), (2, 202600), (4, 101300), (5, 81040), (8, 50650), (10, 40520), (16, 25325), (20, 20260), (25, 16208), (40, 10130), (50, 8104), (80, 5065), (100, 4052), (200, 2026), (400, 1013)]