8040920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4903}}^1$

素因数の和:4955

約数の個数: 32

約数和(自身を含む): 18537120

約数和(自身を除く): 10496200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4903, 9806, 19612, 24515, 39224, 49030, 98060, 196120, 201023, 402046, 804092, 1005115, 1608184, 2010230, 4020460, 8040920]

約数ペア:

[(1, 8040920), (2, 4020460), (4, 2010230), (5, 1608184), (8, 1005115), (10, 804092), (20, 402046), (40, 201023), (41, 196120), (82, 98060), (164, 49030), (205, 39224), (328, 24515), (410, 19612), (820, 9806), (1640, 4903)]