15939100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{8389}}^1$

素因数の和:8422

約数の個数: 36

約数和(自身を含む): 36412600

約数和(自身を除く): 20473500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 8389, 16778, 33556, 41945, 83890, 159391, 167780, 209725, 318782, 419450, 637564, 796955, 838900, 1593910, 3187820, 3984775, 7969550, 15939100]

約数ペア:

[(1, 15939100), (2, 7969550), (4, 3984775), (5, 3187820), (10, 1593910), (19, 838900), (20, 796955), (25, 637564), (38, 419450), (50, 318782), (76, 209725), (95, 167780), (100, 159391), (190, 83890), (380, 41945), (475, 33556), (950, 16778), (1900, 8389)]