215876210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 435207168

約数和(自身を除く): 219330958

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 131, 142, 211, 262, 355, 422, 655, 710, 781, 1055, 1310, 1441, 1562, 2110, 2321, 2882, 3905, 4642, 7205, 7810, 9301, 11605, 14410, 14981, 18602, 23210, 27641, 29962, 46505, 55282, 74905, 93010, 102311, 138205, 149810, 164791, 204622, 276410, 304051, 329582, 511555, 608102, 823955, 1023110, 1520255, 1647910, 1962511, 3040510, 3925022, 9812555, 19625110, 21587621, 43175242, 107938105, 215876210]

約数ペア:

[(1, 215876210), (2, 107938105), (5, 43175242), (10, 21587621), (11, 19625110), (22, 9812555), (55, 3925022), (71, 3040510), (110, 1962511), (131, 1647910), (142, 1520255), (211, 1023110), (262, 823955), (355, 608102), (422, 511555), (655, 329582), (710, 304051), (781, 276410), (1055, 204622), (1310, 164791), (1441, 149810), (1562, 138205), (2110, 102311), (2321, 93010), (2882, 74905), (3905, 55282), (4642, 46505), (7205, 29962), (7810, 27641), (9301, 23210), (11605, 18602), (14410, 14981)]