81316584

素因数分解:

$2^3\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15907}}^1$

素因数の和:15990

約数の個数: 48

約数和(自身を含む): 223348320

約数和(自身を除く): 142031736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 71, 72, 142, 213, 284, 426, 568, 639, 852, 1278, 1704, 2556, 5112, 15907, 31814, 47721, 63628, 95442, 127256, 143163, 190884, 286326, 381768, 572652, 1129397, 1145304, 2258794, 3388191, 4517588, 6776382, 9035176, 10164573, 13552764, 20329146, 27105528, 40658292, 81316584]

約数ペア:

[(1, 81316584), (2, 40658292), (3, 27105528), (4, 20329146), (6, 13552764), (8, 10164573), (9, 9035176), (12, 6776382), (18, 4517588), (24, 3388191), (36, 2258794), (71, 1145304), (72, 1129397), (142, 572652), (213, 381768), (284, 286326), (426, 190884), (568, 143163), (639, 127256), (852, 95442), (1278, 63628), (1704, 47721), (2556, 31814), (5112, 15907)]