81444804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{1861}}^1$

素因数の和:2396

約数の個数: 48

約数和(自身を含む): 217719936

約数和(自身を除く): 136275132

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 521, 1042, 1563, 1861, 2084, 3126, 3647, 3722, 5583, 6252, 7294, 7444, 10941, 11166, 13027, 14588, 21882, 22332, 26054, 39081, 43764, 52108, 78162, 156324, 969581, 1939162, 2908743, 3878324, 5817486, 6787067, 11634972, 13574134, 20361201, 27148268, 40722402, 81444804]

約数ペア:

[(1, 81444804), (2, 40722402), (3, 27148268), (4, 20361201), (6, 13574134), (7, 11634972), (12, 6787067), (14, 5817486), (21, 3878324), (28, 2908743), (42, 1939162), (84, 969581), (521, 156324), (1042, 78162), (1563, 52108), (1861, 43764), (2084, 39081), (3126, 26054), (3647, 22332), (3722, 21882), (5583, 14588), (6252, 13027), (7294, 11166), (7444, 10941)]