81646236

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1153}}^1$

素因数の和:1451

約数の個数: 72

約数和(自身を含む): 236911584

約数和(自身を除く): 155265348

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 281, 562, 843, 1124, 1153, 1686, 1967, 2306, 2529, 3372, 3459, 3934, 4612, 5058, 5901, 6918, 7868, 8071, 10116, 10377, 11802, 13836, 16142, 17703, 20754, 23604, 24213, 32284, 35406, 41508, 48426, 70812, 72639, 96852, 145278, 290556, 323993, 647986, 971979, 1295972, 1943958, 2267951, 2915937, 3887916, 4535902, 5831874, 6803853, 9071804, 11663748, 13607706, 20411559, 27215412, 40823118, 81646236]

約数ペア:

[(1, 81646236), (2, 40823118), (3, 27215412), (4, 20411559), (6, 13607706), (7, 11663748), (9, 9071804), (12, 6803853), (14, 5831874), (18, 4535902), (21, 3887916), (28, 2915937), (36, 2267951), (42, 1943958), (63, 1295972), (84, 971979), (126, 647986), (252, 323993), (281, 290556), (562, 145278), (843, 96852), (1124, 72639), (1153, 70812), (1686, 48426), (1967, 41508), (2306, 35406), (2529, 32284), (3372, 24213), (3459, 23604), (3934, 20754), (4612, 17703), (5058, 16142), (5901, 13836), (6918, 11802), (7868, 10377), (8071, 10116)]