81016460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{578689}}^1$

素因数の和:578705

約数の個数: 24

約数和(自身を含む): 194439840

約数和(自身を除く): 113423380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 578689, 1157378, 2314756, 2893445, 4050823, 5786890, 8101646, 11573780, 16203292, 20254115, 40508230, 81016460]

約数ペア:

[(1, 81016460), (2, 40508230), (4, 20254115), (5, 16203292), (7, 11573780), (10, 8101646), (14, 5786890), (20, 4050823), (28, 2893445), (35, 2314756), (70, 1157378), (140, 578689)]