72505881

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:427

約数の個数: 64

約数和(自身を含む): 131737600

約数和(自身を除く): 59231719

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 61, 63, 133, 171, 183, 189, 331, 399, 427, 513, 549, 993, 1159, 1197, 1281, 1647, 2317, 2979, 3477, 3591, 3843, 6289, 6951, 8113, 8937, 10431, 11529, 18867, 20191, 20853, 24339, 31293, 44023, 56601, 60573, 62559, 73017, 132069, 141337, 169803, 181719, 219051, 383629, 396207, 424011, 545157, 1150887, 1188621, 1272033, 2685403, 3452661, 3816099, 8056209, 10357983, 24168627, 72505881]

約数ペア:

[(1, 72505881), (3, 24168627), (7, 10357983), (9, 8056209), (19, 3816099), (21, 3452661), (27, 2685403), (57, 1272033), (61, 1188621), (63, 1150887), (133, 545157), (171, 424011), (183, 396207), (189, 383629), (331, 219051), (399, 181719), (427, 169803), (513, 141337), (549, 132069), (993, 73017), (1159, 62559), (1197, 60573), (1281, 56601), (1647, 44023), (2317, 31293), (2979, 24339), (3477, 20853), (3591, 20191), (3843, 18867), (6289, 11529), (6951, 10431), (8113, 8937)]