161115980

素因数分解:

$2^2\times 5^1\times {\mathrm{2741}}^1\times {\mathrm{2939}}^1$

素因数の和:5689

約数の個数: 24

約数和(自身を含む): 338582160

約数和(自身を除く): 177466180

約数列:

[1, 2, 4, 5, 10, 20, 2741, 2939, 5482, 5878, 10964, 11756, 13705, 14695, 27410, 29390, 54820, 58780, 8055799, 16111598, 32223196, 40278995, 80557990, 161115980]

約数ペア:

[(1, 161115980), (2, 80557990), (4, 40278995), (5, 32223196), (10, 16111598), (20, 8055799), (2741, 58780), (2939, 54820), (5482, 29390), (5878, 27410), (10964, 14695), (11756, 13705)]