20181456

素因数分解:

$2^4\times 3^2\times {\mathrm{269}}^1\times {\mathrm{521}}^1$

素因数の和:804

約数の個数: 60

約数和(自身を含む): 56798820

約数和(自身を除く): 36617364

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 269, 521, 538, 807, 1042, 1076, 1563, 1614, 2084, 2152, 2421, 3126, 3228, 4168, 4304, 4689, 4842, 6252, 6456, 8336, 9378, 9684, 12504, 12912, 18756, 19368, 25008, 37512, 38736, 75024, 140149, 280298, 420447, 560596, 840894, 1121192, 1261341, 1681788, 2242384, 2522682, 3363576, 5045364, 6727152, 10090728, 20181456]

約数ペア:

[(1, 20181456), (2, 10090728), (3, 6727152), (4, 5045364), (6, 3363576), (8, 2522682), (9, 2242384), (12, 1681788), (16, 1261341), (18, 1121192), (24, 840894), (36, 560596), (48, 420447), (72, 280298), (144, 140149), (269, 75024), (521, 38736), (538, 37512), (807, 25008), (1042, 19368), (1076, 18756), (1563, 12912), (1614, 12504), (2084, 9684), (2152, 9378), (2421, 8336), (3126, 6456), (3228, 6252), (4168, 4842), (4304, 4689)]