81278460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451547}}^1$

素因数の和:451562

約数の個数: 36

約数和(自身を含む): 246545208

約数和(自身を除く): 165266748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451547, 903094, 1354641, 1806188, 2257735, 2709282, 4063923, 4515470, 5418564, 6773205, 8127846, 9030940, 13546410, 16255692, 20319615, 27092820, 40639230, 81278460]

約数ペア:

[(1, 81278460), (2, 40639230), (3, 27092820), (4, 20319615), (5, 16255692), (6, 13546410), (9, 9030940), (10, 8127846), (12, 6773205), (15, 5418564), (18, 4515470), (20, 4063923), (30, 2709282), (36, 2257735), (45, 1806188), (60, 1354641), (90, 903094), (180, 451547)]