291235760

素因数分解:

$2^4\times 5^1\times {\mathrm{3640447}}^1$

素因数の和:3640460

約数の個数: 20

約数和(自身を含む): 677123328

約数和(自身を除く): 385887568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640447, 7280894, 14561788, 18202235, 29123576, 36404470, 58247152, 72808940, 145617880, 291235760]

約数ペア:

[(1, 291235760), (2, 145617880), (4, 72808940), (5, 58247152), (8, 36404470), (10, 29123576), (16, 18202235), (20, 14561788), (40, 7280894), (80, 3640447)]