18138160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11933}}^1$

素因数の和:11965

約数の個数: 40

約数和(自身を含む): 44394480

約数和(自身を除く): 26256320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 11933, 23866, 47732, 59665, 95464, 119330, 190928, 226727, 238660, 453454, 477320, 906908, 954640, 1133635, 1813816, 2267270, 3627632, 4534540, 9069080, 18138160]

約数ペア:

[(1, 18138160), (2, 9069080), (4, 4534540), (5, 3627632), (8, 2267270), (10, 1813816), (16, 1133635), (19, 954640), (20, 906908), (38, 477320), (40, 453454), (76, 238660), (80, 226727), (95, 190928), (152, 119330), (190, 95464), (304, 59665), (380, 47732), (760, 23866), (1520, 11933)]