64420360

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3307}}^1$

素因数の和:3805

約数の個数: 32

約数和(自身を含む): 145287360

約数和(自身を除く): 80867000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3307, 3896, 4870, 6614, 9740, 13228, 16535, 19480, 26456, 33070, 66140, 132280, 1610509, 3221018, 6442036, 8052545, 12884072, 16105090, 32210180, 64420360]

約数ペア:

[(1, 64420360), (2, 32210180), (4, 16105090), (5, 12884072), (8, 8052545), (10, 6442036), (20, 3221018), (40, 1610509), (487, 132280), (974, 66140), (1948, 33070), (2435, 26456), (3307, 19480), (3896, 16535), (4870, 13228), (6614, 9740)]