638792880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{21997}}^1$

素因数の和:22035

約数の個数: 120

約数和(自身を含む): 2176746096

約数和(自身を除く): 1537953216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 121, 132, 165, 176, 220, 240, 242, 264, 330, 363, 440, 484, 528, 605, 660, 726, 880, 968, 1210, 1320, 1452, 1815, 1936, 2420, 2640, 2904, 3630, 4840, 5808, 7260, 9680, 14520, 21997, 29040, 43994, 65991, 87988, 109985, 131982, 175976, 219970, 241967, 263964, 329955, 351952, 439940, 483934, 527928, 659910, 725901, 879880, 967868, 1055856, 1209835, 1319820, 1451802, 1759760, 1935736, 2419670, 2639640, 2661637, 2903604, 3629505, 3871472, 4839340, 5279280, 5323274, 5807208, 7259010, 7984911, 9678680, 10646548, 11614416, 13308185, 14518020, 15969822, 19357360, 21293096, 26616370, 29036040, 31939644, 39924555, 42586192, 53232740, 58072080, 63879288, 79849110, 106465480, 127758576, 159698220, 212930960, 319396440, 638792880]

約数ペア:

[(1, 638792880), (2, 319396440), (3, 212930960), (4, 159698220), (5, 127758576), (6, 106465480), (8, 79849110), (10, 63879288), (11, 58072080), (12, 53232740), (15, 42586192), (16, 39924555), (20, 31939644), (22, 29036040), (24, 26616370), (30, 21293096), (33, 19357360), (40, 15969822), (44, 14518020), (48, 13308185), (55, 11614416), (60, 10646548), (66, 9678680), (80, 7984911), (88, 7259010), (110, 5807208), (120, 5323274), (121, 5279280), (132, 4839340), (165, 3871472), (176, 3629505), (220, 2903604), (240, 2661637), (242, 2639640), (264, 2419670), (330, 1935736), (363, 1759760), (440, 1451802), (484, 1319820), (528, 1209835), (605, 1055856), (660, 967868), (726, 879880), (880, 725901), (968, 659910), (1210, 527928), (1320, 483934), (1452, 439940), (1815, 351952), (1936, 329955), (2420, 263964), (2640, 241967), (2904, 219970), (3630, 175976), (4840, 131982), (5808, 109985), (7260, 87988), (9680, 65991), (14520, 43994), (21997, 29040)]