687646680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{859}}^1\times {\mathrm{953}}^1$

素因数の和:1833

約数の個数: 128

約数和(自身を含む): 2362867200

約数和(自身を除く): 1675220520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 859, 953, 1718, 1906, 2577, 2859, 3436, 3812, 4295, 4765, 5154, 5718, 6013, 6671, 6872, 7624, 8590, 9530, 10308, 11436, 12026, 12885, 13342, 14295, 17180, 18039, 19060, 20013, 20616, 22872, 24052, 25770, 26684, 28590, 30065, 33355, 34360, 36078, 38120, 40026, 48104, 51540, 53368, 57180, 60130, 66710, 72156, 80052, 90195, 100065, 103080, 114360, 120260, 133420, 144312, 160104, 180390, 200130, 240520, 266840, 360780, 400260, 721560, 800520, 818627, 1637254, 2455881, 3274508, 4093135, 4911762, 5730389, 6549016, 8186270, 9823524, 11460778, 12279405, 16372540, 17191167, 19647048, 22921556, 24558810, 28651945, 32745080, 34382334, 45843112, 49117620, 57303890, 68764668, 85955835, 98235240, 114607780, 137529336, 171911670, 229215560, 343823340, 687646680]

約数ペア:

[(1, 687646680), (2, 343823340), (3, 229215560), (4, 171911670), (5, 137529336), (6, 114607780), (7, 98235240), (8, 85955835), (10, 68764668), (12, 57303890), (14, 49117620), (15, 45843112), (20, 34382334), (21, 32745080), (24, 28651945), (28, 24558810), (30, 22921556), (35, 19647048), (40, 17191167), (42, 16372540), (56, 12279405), (60, 11460778), (70, 9823524), (84, 8186270), (105, 6549016), (120, 5730389), (140, 4911762), (168, 4093135), (210, 3274508), (280, 2455881), (420, 1637254), (840, 818627), (859, 800520), (953, 721560), (1718, 400260), (1906, 360780), (2577, 266840), (2859, 240520), (3436, 200130), (3812, 180390), (4295, 160104), (4765, 144312), (5154, 133420), (5718, 120260), (6013, 114360), (6671, 103080), (6872, 100065), (7624, 90195), (8590, 80052), (9530, 72156), (10308, 66710), (11436, 60130), (12026, 57180), (12885, 53368), (13342, 51540), (14295, 48104), (17180, 40026), (18039, 38120), (19060, 36078), (20013, 34360), (20616, 33355), (22872, 30065), (24052, 28590), (25770, 26684)]