19179280

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1609}}^1$

素因数の和:1771

約数の個数: 40

約数和(自身を含む): 44919000

約数和(自身を除く): 25739720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 1609, 2384, 2980, 3218, 5960, 6436, 8045, 11920, 12872, 16090, 25744, 32180, 64360, 128720, 239741, 479482, 958964, 1198705, 1917928, 2397410, 3835856, 4794820, 9589640, 19179280]

約数ペア:

[(1, 19179280), (2, 9589640), (4, 4794820), (5, 3835856), (8, 2397410), (10, 1917928), (16, 1198705), (20, 958964), (40, 479482), (80, 239741), (149, 128720), (298, 64360), (596, 32180), (745, 25744), (1192, 16090), (1490, 12872), (1609, 11920), (2384, 8045), (2980, 6436), (3218, 5960)]