138717080

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{7121}}^1$

素因数の和:7619

約数の個数: 32

約数和(自身を含む): 312798240

約数和(自身を除く): 174081160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 7121, 9740, 14242, 19480, 28484, 35605, 56968, 71210, 142420, 284840, 3467927, 6935854, 13871708, 17339635, 27743416, 34679270, 69358540, 138717080]

約数ペア:

[(1, 138717080), (2, 69358540), (4, 34679270), (5, 27743416), (8, 17339635), (10, 13871708), (20, 6935854), (40, 3467927), (487, 284840), (974, 142420), (1948, 71210), (2435, 56968), (3896, 35605), (4870, 28484), (7121, 19480), (9740, 14242)]