81397776

素因数分解:

$2^4\times 3^1\times {\mathrm{647}}^1\times {\mathrm{2621}}^1$

素因数の和:3279

約数の個数: 40

約数和(自身を含む): 210682944

約数和(自身を除く): 129285168

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 647, 1294, 1941, 2588, 2621, 3882, 5176, 5242, 7764, 7863, 10352, 10484, 15528, 15726, 20968, 31056, 31452, 41936, 62904, 125808, 1695787, 3391574, 5087361, 6783148, 10174722, 13566296, 20349444, 27132592, 40698888, 81397776]

約数ペア:

[(1, 81397776), (2, 40698888), (3, 27132592), (4, 20349444), (6, 13566296), (8, 10174722), (12, 6783148), (16, 5087361), (24, 3391574), (48, 1695787), (647, 125808), (1294, 62904), (1941, 41936), (2588, 31452), (2621, 31056), (3882, 20968), (5176, 15726), (5242, 15528), (7764, 10484), (7863, 10352)]