215681510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:521

約数の個数: 64

約数和(自身を含む): 438799680

約数和(自身を除く): 223118170

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 197, 269, 370, 394, 407, 538, 814, 985, 1345, 1970, 2035, 2167, 2690, 2959, 4070, 4334, 5918, 7289, 9953, 10835, 14578, 14795, 19906, 21670, 29590, 36445, 49765, 52993, 72890, 80179, 99530, 105986, 109483, 160358, 218966, 264965, 400895, 529930, 547415, 582923, 801790, 1094830, 1165846, 1960741, 2914615, 3921482, 5829230, 9803705, 19607410, 21568151, 43136302, 107840755, 215681510]

約数ペア:

[(1, 215681510), (2, 107840755), (5, 43136302), (10, 21568151), (11, 19607410), (22, 9803705), (37, 5829230), (55, 3921482), (74, 2914615), (110, 1960741), (185, 1165846), (197, 1094830), (269, 801790), (370, 582923), (394, 547415), (407, 529930), (538, 400895), (814, 264965), (985, 218966), (1345, 160358), (1970, 109483), (2035, 105986), (2167, 99530), (2690, 80179), (2959, 72890), (4070, 52993), (4334, 49765), (5918, 36445), (7289, 29590), (9953, 21670), (10835, 19906), (14578, 14795)]