81138708

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{6571}}^1$

素因数の和:6602

約数の個数: 72

約数和(自身を含む): 239220800

約数和(自身を除く): 158082092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1764, 2058, 3087, 4116, 6174, 6571, 12348, 13142, 19713, 26284, 39426, 45997, 59139, 78852, 91994, 118278, 137991, 183988, 236556, 275982, 321979, 413973, 551964, 643958, 827946, 965937, 1287916, 1655892, 1931874, 2253853, 2897811, 3863748, 4507706, 5795622, 6761559, 9015412, 11591244, 13523118, 20284677, 27046236, 40569354, 81138708]

約数ペア:

[(1, 81138708), (2, 40569354), (3, 27046236), (4, 20284677), (6, 13523118), (7, 11591244), (9, 9015412), (12, 6761559), (14, 5795622), (18, 4507706), (21, 3863748), (28, 2897811), (36, 2253853), (42, 1931874), (49, 1655892), (63, 1287916), (84, 965937), (98, 827946), (126, 643958), (147, 551964), (196, 413973), (252, 321979), (294, 275982), (343, 236556), (441, 183988), (588, 137991), (686, 118278), (882, 91994), (1029, 78852), (1372, 59139), (1764, 45997), (2058, 39426), (3087, 26284), (4116, 19713), (6174, 13142), (6571, 12348)]