13112380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21149}}^1$

素因数の和:21189

約数の個数: 24

約数和(自身を含む): 28425600

約数和(自身を除く): 15313220

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 21149, 42298, 84596, 105745, 211490, 422980, 655619, 1311238, 2622476, 3278095, 6556190, 13112380]

約数ペア:

[(1, 13112380), (2, 6556190), (4, 3278095), (5, 2622476), (10, 1311238), (20, 655619), (31, 422980), (62, 211490), (124, 105745), (155, 84596), (310, 42298), (620, 21149)]