655127760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{389957}}^1$

素因数の和:389980

約数の個数: 80

約数和(自身を含む): 2321030016

約数和(自身を除く): 1665902256

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 389957, 779914, 1169871, 1559828, 1949785, 2339742, 2729699, 3119656, 3899570, 4679484, 5459398, 5849355, 6239312, 7799140, 8189097, 9358968, 10918796, 11698710, 13648495, 15598280, 16378194, 18717936, 21837592, 23397420, 27296990, 31196560, 32756388, 40945485, 43675184, 46794840, 54593980, 65512776, 81890970, 93589680, 109187960, 131025552, 163781940, 218375920, 327563880, 655127760]

約数ペア:

[(1, 655127760), (2, 327563880), (3, 218375920), (4, 163781940), (5, 131025552), (6, 109187960), (7, 93589680), (8, 81890970), (10, 65512776), (12, 54593980), (14, 46794840), (15, 43675184), (16, 40945485), (20, 32756388), (21, 31196560), (24, 27296990), (28, 23397420), (30, 21837592), (35, 18717936), (40, 16378194), (42, 15598280), (48, 13648495), (56, 11698710), (60, 10918796), (70, 9358968), (80, 8189097), (84, 7799140), (105, 6239312), (112, 5849355), (120, 5459398), (140, 4679484), (168, 3899570), (210, 3119656), (240, 2729699), (280, 2339742), (336, 1949785), (420, 1559828), (560, 1169871), (840, 779914), (1680, 389957)]