39719720

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2039}}^1$

素因数の和:2537

約数の個数: 32

約数和(自身を含む): 89596800

約数和(自身を除く): 49877080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2039, 2435, 3896, 4078, 4870, 8156, 9740, 10195, 16312, 19480, 20390, 40780, 81560, 992993, 1985986, 3971972, 4964965, 7943944, 9929930, 19859860, 39719720]

約数ペア:

[(1, 39719720), (2, 19859860), (4, 9929930), (5, 7943944), (8, 4964965), (10, 3971972), (20, 1985986), (40, 992993), (487, 81560), (974, 40780), (1948, 20390), (2039, 19480), (2435, 16312), (3896, 10195), (4078, 9740), (4870, 8156)]