1978621680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{1177751}}^1$

素因数の和:1177774

約数の個数: 80

約数和(自身を含む): 7009979904

約数和(自身を除く): 5031358224

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, 1177751, 2355502, 3533253, 4711004, 5888755, 7066506, 8244257, 9422008, 11777510, 14133012, 16488514, 17666265, 18844016, 23555020, 24732771, 28266024, 32977028, 35332530, 41221285, 47110040, 49465542, 56532048, 65954056, 70665060, 82442570, 94220080, 98931084, 123663855, 131908112, 141330120, 164885140, 197862168, 247327710, 282660240, 329770280, 395724336, 494655420, 659540560, 989310840, 1978621680]

約数ペア:

[(1, 1978621680), (2, 989310840), (3, 659540560), (4, 494655420), (5, 395724336), (6, 329770280), (7, 282660240), (8, 247327710), (10, 197862168), (12, 164885140), (14, 141330120), (15, 131908112), (16, 123663855), (20, 98931084), (21, 94220080), (24, 82442570), (28, 70665060), (30, 65954056), (35, 56532048), (40, 49465542), (42, 47110040), (48, 41221285), (56, 35332530), (60, 32977028), (70, 28266024), (80, 24732771), (84, 23555020), (105, 18844016), (112, 17666265), (120, 16488514), (140, 14133012), (168, 11777510), (210, 9422008), (240, 8244257), (280, 7066506), (336, 5888755), (420, 4711004), (560, 3533253), (840, 2355502), (1680, 1177751)]