180940

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 24

約数和(自身を含む): 388080

約数和(自身を除く): 207140

約数列:

[1, 2, 4, 5, 10, 20, 83, 109, 166, 218, 332, 415, 436, 545, 830, 1090, 1660, 2180, 9047, 18094, 36188, 45235, 90470, 180940]

約数ペア:

[(1, 180940), (2, 90470), (4, 45235), (5, 36188), (10, 18094), (20, 9047), (83, 2180), (109, 1660), (166, 1090), (218, 830), (332, 545), (415, 436)]