770220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 2555280

約数和(自身を除く): 1785060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 389, 396, 495, 660, 778, 990, 1167, 1556, 1945, 1980, 2334, 3501, 3890, 4279, 4668, 5835, 7002, 7780, 8558, 11670, 12837, 14004, 17116, 17505, 21395, 23340, 25674, 35010, 38511, 42790, 51348, 64185, 70020, 77022, 85580, 128370, 154044, 192555, 256740, 385110, 770220]

約数ペア:

[(1, 770220), (2, 385110), (3, 256740), (4, 192555), (5, 154044), (6, 128370), (9, 85580), (10, 77022), (11, 70020), (12, 64185), (15, 51348), (18, 42790), (20, 38511), (22, 35010), (30, 25674), (33, 23340), (36, 21395), (44, 17505), (45, 17116), (55, 14004), (60, 12837), (66, 11670), (90, 8558), (99, 7780), (110, 7002), (132, 5835), (165, 4668), (180, 4279), (198, 3890), (220, 3501), (330, 2334), (389, 1980), (396, 1945), (495, 1556), (660, 1167), (778, 990)]