81896440

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{3373}}^1$

素因数の和:3991

約数の個数: 32

約数和(自身を含む): 184625280

約数和(自身を除く): 102728840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 1214, 2428, 3035, 3373, 4856, 6070, 6746, 12140, 13492, 16865, 24280, 26984, 33730, 67460, 134920, 2047411, 4094822, 8189644, 10237055, 16379288, 20474110, 40948220, 81896440]

約数ペア:

[(1, 81896440), (2, 40948220), (4, 20474110), (5, 16379288), (8, 10237055), (10, 8189644), (20, 4094822), (40, 2047411), (607, 134920), (1214, 67460), (2428, 33730), (3035, 26984), (3373, 24280), (4856, 16865), (6070, 13492), (6746, 12140)]