21346640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38119}}^1$

素因数の和:38139

約数の個数: 40

約数和(自身を含む): 56722560

約数和(自身を除く): 35375920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38119, 76238, 152476, 190595, 266833, 304952, 381190, 533666, 609904, 762380, 1067332, 1334165, 1524760, 2134664, 2668330, 3049520, 4269328, 5336660, 10673320, 21346640]

約数ペア:

[(1, 21346640), (2, 10673320), (4, 5336660), (5, 4269328), (7, 3049520), (8, 2668330), (10, 2134664), (14, 1524760), (16, 1334165), (20, 1067332), (28, 762380), (35, 609904), (40, 533666), (56, 381190), (70, 304952), (80, 266833), (112, 190595), (140, 152476), (280, 76238), (560, 38119)]