12960040840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1361}}^1\times {\mathrm{8209}}^1$

素因数の和:9610

約数の個数: 64

約数和(自身を含む): 30191454000

約数和(自身を除く): 17231413160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 1361, 2722, 5444, 6805, 8209, 10888, 13610, 16418, 27220, 32836, 39469, 41045, 54440, 65672, 78938, 82090, 157876, 164180, 197345, 238061, 315752, 328360, 394690, 476122, 789380, 952244, 1190305, 1578760, 1904488, 2380610, 4761220, 9522440, 11172449, 22344898, 44689796, 55862245, 89379592, 111724490, 223448980, 324001021, 446897960, 648002042, 1296004084, 1620005105, 2592008168, 3240010210, 6480020420, 12960040840]

約数ペア:

[(1, 12960040840), (2, 6480020420), (4, 3240010210), (5, 2592008168), (8, 1620005105), (10, 1296004084), (20, 648002042), (29, 446897960), (40, 324001021), (58, 223448980), (116, 111724490), (145, 89379592), (232, 55862245), (290, 44689796), (580, 22344898), (1160, 11172449), (1361, 9522440), (2722, 4761220), (5444, 2380610), (6805, 1904488), (8209, 1578760), (10888, 1190305), (13610, 952244), (16418, 789380), (27220, 476122), (32836, 394690), (39469, 328360), (41045, 315752), (54440, 238061), (65672, 197345), (78938, 164180), (82090, 157876)]