66964816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{220279}}^1$

素因数の和:220306

約数の個数: 20

約数和(自身を含む): 136573600

約数和(自身を除く): 69608784

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 220279, 440558, 881116, 1762232, 3524464, 4185301, 8370602, 16741204, 33482408, 66964816]

約数ペア:

[(1, 66964816), (2, 33482408), (4, 16741204), (8, 8370602), (16, 4185301), (19, 3524464), (38, 1762232), (76, 881116), (152, 440558), (304, 220279)]