19900190

素因数分解:

$2^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{11503}}^1$

素因数の和:11683

約数の個数: 16

約数和(自身を含む): 36030528

約数和(自身を除く): 16130338

約数列:

[1, 2, 5, 10, 173, 346, 865, 1730, 11503, 23006, 57515, 115030, 1990019, 3980038, 9950095, 19900190]

約数ペア:

[(1, 19900190), (2, 9950095), (5, 3980038), (10, 1990019), (173, 115030), (346, 57515), (865, 23006), (1730, 11503)]