81206640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112787}}^1$

素因数の和:112806

約数の個数: 60

約数和(自身を含む): 272721384

約数和(自身を除く): 191514744

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112787, 225574, 338361, 451148, 563935, 676722, 902296, 1015083, 1127870, 1353444, 1691805, 1804592, 2030166, 2255740, 2706888, 3383610, 4060332, 4511480, 5075415, 5413776, 6767220, 8120664, 9022960, 10150830, 13534440, 16241328, 20301660, 27068880, 40603320, 81206640]

約数ペア:

[(1, 81206640), (2, 40603320), (3, 27068880), (4, 20301660), (5, 16241328), (6, 13534440), (8, 10150830), (9, 9022960), (10, 8120664), (12, 6767220), (15, 5413776), (16, 5075415), (18, 4511480), (20, 4060332), (24, 3383610), (30, 2706888), (36, 2255740), (40, 2030166), (45, 1804592), (48, 1691805), (60, 1353444), (72, 1127870), (80, 1015083), (90, 902296), (120, 676722), (144, 563935), (180, 451148), (240, 338361), (360, 225574), (720, 112787)]