79439440

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2039}}^1$

素因数の和:2539

約数の個数: 40

約数和(自身を含む): 185166720

約数和(自身を除く): 105727280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2039, 2435, 3896, 4078, 4870, 7792, 8156, 9740, 10195, 16312, 19480, 20390, 32624, 38960, 40780, 81560, 163120, 992993, 1985986, 3971972, 4964965, 7943944, 9929930, 15887888, 19859860, 39719720, 79439440]

約数ペア:

[(1, 79439440), (2, 39719720), (4, 19859860), (5, 15887888), (8, 9929930), (10, 7943944), (16, 4964965), (20, 3971972), (40, 1985986), (80, 992993), (487, 163120), (974, 81560), (1948, 40780), (2039, 38960), (2435, 32624), (3896, 20390), (4078, 19480), (4870, 16312), (7792, 10195), (8156, 9740)]