680347920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{404969}}^1$

素因数の和:404992

約数の個数: 80

約数和(自身を含む): 2410381440

約数和(自身を除く): 1730033520

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, 404969, 809938, 1214907, 1619876, 2024845, 2429814, 2834783, 3239752, 4049690, 4859628, 5669566, 6074535, 6479504, 8099380, 8504349, 9719256, 11339132, 12149070, 14173915, 16198760, 17008698, 19438512, 22678264, 24298140, 28347830, 32397520, 34017396, 42521745, 45356528, 48596280, 56695660, 68034792, 85043490, 97192560, 113391320, 136069584, 170086980, 226782640, 340173960, 680347920]

約数ペア:

[(1, 680347920), (2, 340173960), (3, 226782640), (4, 170086980), (5, 136069584), (6, 113391320), (7, 97192560), (8, 85043490), (10, 68034792), (12, 56695660), (14, 48596280), (15, 45356528), (16, 42521745), (20, 34017396), (21, 32397520), (24, 28347830), (28, 24298140), (30, 22678264), (35, 19438512), (40, 17008698), (42, 16198760), (48, 14173915), (56, 12149070), (60, 11339132), (70, 9719256), (80, 8504349), (84, 8099380), (105, 6479504), (112, 6074535), (120, 5669566), (140, 4859628), (168, 4049690), (210, 3239752), (240, 2834783), (280, 2429814), (336, 2024845), (420, 1619876), (560, 1214907), (840, 809938), (1680, 404969)]