215528880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{128291}}^1$

素因数の和:128314

約数の個数: 80

約数和(自身を含む): 763593984

約数和(自身を除く): 548065104

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, 128291, 256582, 384873, 513164, 641455, 769746, 898037, 1026328, 1282910, 1539492, 1796074, 1924365, 2052656, 2565820, 2694111, 3078984, 3592148, 3848730, 4490185, 5131640, 5388222, 6157968, 7184296, 7697460, 8980370, 10263280, 10776444, 13470555, 14368592, 15394920, 17960740, 21552888, 26941110, 30789840, 35921480, 43105776, 53882220, 71842960, 107764440, 215528880]

約数ペア:

[(1, 215528880), (2, 107764440), (3, 71842960), (4, 53882220), (5, 43105776), (6, 35921480), (7, 30789840), (8, 26941110), (10, 21552888), (12, 17960740), (14, 15394920), (15, 14368592), (16, 13470555), (20, 10776444), (21, 10263280), (24, 8980370), (28, 7697460), (30, 7184296), (35, 6157968), (40, 5388222), (42, 5131640), (48, 4490185), (56, 3848730), (60, 3592148), (70, 3078984), (80, 2694111), (84, 2565820), (105, 2052656), (112, 1924365), (120, 1796074), (140, 1539492), (168, 1282910), (210, 1026328), (240, 898037), (280, 769746), (336, 641455), (420, 513164), (560, 384873), (840, 256582), (1680, 128291)]