181738984

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1063}}^1$

素因数の和:1190

約数の個数: 64

約数和(自身を含む): 404490240

約数和(自身を除く): 222751256

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 71, 86, 142, 172, 284, 301, 344, 497, 568, 602, 994, 1063, 1204, 1988, 2126, 2408, 3053, 3976, 4252, 6106, 7441, 8504, 12212, 14882, 21371, 24424, 29764, 42742, 45709, 59528, 75473, 85484, 91418, 150946, 170968, 182836, 301892, 319963, 365672, 528311, 603784, 639926, 1056622, 1279852, 2113244, 2559704, 3245339, 4226488, 6490678, 12981356, 22717373, 25962712, 45434746, 90869492, 181738984]

約数ペア:

[(1, 181738984), (2, 90869492), (4, 45434746), (7, 25962712), (8, 22717373), (14, 12981356), (28, 6490678), (43, 4226488), (56, 3245339), (71, 2559704), (86, 2113244), (142, 1279852), (172, 1056622), (284, 639926), (301, 603784), (344, 528311), (497, 365672), (568, 319963), (602, 301892), (994, 182836), (1063, 170968), (1204, 150946), (1988, 91418), (2126, 85484), (2408, 75473), (3053, 59528), (3976, 45709), (4252, 42742), (6106, 29764), (7441, 24424), (8504, 21371), (12212, 14882)]