664703760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{395657}}^1$

素因数の和:395680

約数の個数: 80

約数和(自身を含む): 2354956416

約数和(自身を除く): 1690252656

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, 395657, 791314, 1186971, 1582628, 1978285, 2373942, 2769599, 3165256, 3956570, 4747884, 5539198, 5934855, 6330512, 7913140, 8308797, 9495768, 11078396, 11869710, 13847995, 15826280, 16617594, 18991536, 22156792, 23739420, 27695990, 31652560, 33235188, 41543985, 44313584, 47478840, 55391980, 66470376, 83087970, 94957680, 110783960, 132940752, 166175940, 221567920, 332351880, 664703760]

約数ペア:

[(1, 664703760), (2, 332351880), (3, 221567920), (4, 166175940), (5, 132940752), (6, 110783960), (7, 94957680), (8, 83087970), (10, 66470376), (12, 55391980), (14, 47478840), (15, 44313584), (16, 41543985), (20, 33235188), (21, 31652560), (24, 27695990), (28, 23739420), (30, 22156792), (35, 18991536), (40, 16617594), (42, 15826280), (48, 13847995), (56, 11869710), (60, 11078396), (70, 9495768), (80, 8308797), (84, 7913140), (105, 6330512), (112, 5934855), (120, 5539198), (140, 4747884), (168, 3956570), (210, 3165256), (240, 2769599), (280, 2373942), (336, 1978285), (420, 1582628), (560, 1186971), (840, 791314), (1680, 395657)]