214891640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1237}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 500052960

約数和(自身を除く): 285161320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 101, 172, 202, 215, 344, 404, 430, 505, 808, 860, 1010, 1237, 1720, 2020, 2474, 4040, 4343, 4948, 6185, 8686, 9896, 12370, 17372, 21715, 24740, 34744, 43430, 49480, 53191, 86860, 106382, 124937, 173720, 212764, 249874, 265955, 425528, 499748, 531910, 624685, 999496, 1063820, 1249370, 2127640, 2498740, 4997480, 5372291, 10744582, 21489164, 26861455, 42978328, 53722910, 107445820, 214891640]

約数ペア:

[(1, 214891640), (2, 107445820), (4, 53722910), (5, 42978328), (8, 26861455), (10, 21489164), (20, 10744582), (40, 5372291), (43, 4997480), (86, 2498740), (101, 2127640), (172, 1249370), (202, 1063820), (215, 999496), (344, 624685), (404, 531910), (430, 499748), (505, 425528), (808, 265955), (860, 249874), (1010, 212764), (1237, 173720), (1720, 124937), (2020, 106382), (2474, 86860), (4040, 53191), (4343, 49480), (4948, 43430), (6185, 34744), (8686, 24740), (9896, 21715), (12370, 17372)]