81487260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7673}}^1$

素因数の和:7747

約数の個数: 72

約数和(自身を含む): 251400240

約数和(自身を除く): 169912980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 2124, 2655, 3540, 5310, 7673, 10620, 15346, 23019, 30692, 38365, 46038, 69057, 76730, 92076, 115095, 138114, 153460, 230190, 276228, 345285, 452707, 460380, 690570, 905414, 1358121, 1381140, 1810828, 2263535, 2716242, 4074363, 4527070, 5432484, 6790605, 8148726, 9054140, 13581210, 16297452, 20371815, 27162420, 40743630, 81487260]

約数ペア:

[(1, 81487260), (2, 40743630), (3, 27162420), (4, 20371815), (5, 16297452), (6, 13581210), (9, 9054140), (10, 8148726), (12, 6790605), (15, 5432484), (18, 4527070), (20, 4074363), (30, 2716242), (36, 2263535), (45, 1810828), (59, 1381140), (60, 1358121), (90, 905414), (118, 690570), (177, 460380), (180, 452707), (236, 345285), (295, 276228), (354, 230190), (531, 153460), (590, 138114), (708, 115095), (885, 92076), (1062, 76730), (1180, 69057), (1770, 46038), (2124, 38365), (2655, 30692), (3540, 23019), (5310, 15346), (7673, 10620)]