253123031

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 306432000

約数和(自身を除く): 53308969

約数列:

[1, 7, 37, 79, 89, 139, 259, 553, 623, 973, 2923, 3293, 5143, 7031, 10981, 12371, 20461, 23051, 36001, 49217, 76867, 86597, 260147, 406297, 457727, 977309, 1821029, 2844079, 3204089, 6841163, 36160433, 253123031]

約数ペア:

[(1, 253123031), (7, 36160433), (37, 6841163), (79, 3204089), (89, 2844079), (139, 1821029), (259, 977309), (553, 457727), (623, 406297), (973, 260147), (2923, 86597), (3293, 76867), (5143, 49217), (7031, 36001), (10981, 23051), (12371, 20461)]