216460

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 463680

約数和(自身を除く): 247220

約数列:

[1, 2, 4, 5, 10, 20, 79, 137, 158, 274, 316, 395, 548, 685, 790, 1370, 1580, 2740, 10823, 21646, 43292, 54115, 108230, 216460]

約数ペア:

[(1, 216460), (2, 108230), (4, 54115), (5, 43292), (10, 21646), (20, 10823), (79, 2740), (137, 1580), (158, 1370), (274, 790), (316, 685), (395, 548)]