490002742

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 785426400

約数和(自身を除く): 295423658

約数列:

[1, 2, 19, 38, 109, 218, 281, 421, 562, 842, 2071, 4142, 5339, 7999, 10678, 15998, 30629, 45889, 61258, 91778, 118301, 236602, 581951, 871891, 1163902, 1743782, 2247719, 4495438, 12894809, 25789618, 245001371, 490002742]

約数ペア:

[(1, 490002742), (2, 245001371), (19, 25789618), (38, 12894809), (109, 4495438), (218, 2247719), (281, 1743782), (421, 1163902), (562, 871891), (842, 581951), (2071, 236602), (4142, 118301), (5339, 91778), (7999, 61258), (10678, 45889), (15998, 30629)]