66511780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{457}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 147732480

約数和(自身を除く): 81220700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 383, 457, 766, 914, 1532, 1828, 1915, 2285, 3830, 4570, 7277, 7660, 8683, 9140, 14554, 17366, 29108, 34732, 36385, 43415, 72770, 86830, 145540, 173660, 175031, 350062, 700124, 875155, 1750310, 3325589, 3500620, 6651178, 13302356, 16627945, 33255890, 66511780]

約数ペア:

[(1, 66511780), (2, 33255890), (4, 16627945), (5, 13302356), (10, 6651178), (19, 3500620), (20, 3325589), (38, 1750310), (76, 875155), (95, 700124), (190, 350062), (380, 175031), (383, 173660), (457, 145540), (766, 86830), (914, 72770), (1532, 43415), (1828, 36385), (1915, 34732), (2285, 29108), (3830, 17366), (4570, 14554), (7277, 9140), (7660, 8683)]