20016

素因数分解:

$2^4\times 3^2\times {\mathrm{139}}^1$

素因数の和:153

約数の個数: 30

約数和(自身を含む): 56420

約数和(自身を除く): 36404

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 139, 144, 278, 417, 556, 834, 1112, 1251, 1668, 2224, 2502, 3336, 5004, 6672, 10008, 20016]

約数ペア:

[(1, 20016), (2, 10008), (3, 6672), (4, 5004), (6, 3336), (8, 2502), (9, 2224), (12, 1668), (16, 1251), (18, 1112), (24, 834), (36, 556), (48, 417), (72, 278), (139, 144)]