194020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 415800

約数和(自身を除く): 221780

約数列:

[1, 2, 4, 5, 10, 20, 89, 109, 178, 218, 356, 436, 445, 545, 890, 1090, 1780, 2180, 9701, 19402, 38804, 48505, 97010, 194020]

約数ペア:

[(1, 194020), (2, 97010), (4, 48505), (5, 38804), (10, 19402), (20, 9701), (89, 2180), (109, 1780), (178, 1090), (218, 890), (356, 545), (436, 445)]