155911280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{278413}}^1$

素因数の和:278433

約数の個数: 40

約数和(自身を含む): 414280032

約数和(自身を除く): 258368752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 278413, 556826, 1113652, 1392065, 1948891, 2227304, 2784130, 3897782, 4454608, 5568260, 7795564, 9744455, 11136520, 15591128, 19488910, 22273040, 31182256, 38977820, 77955640, 155911280]

約数ペア:

[(1, 155911280), (2, 77955640), (4, 38977820), (5, 31182256), (7, 22273040), (8, 19488910), (10, 15591128), (14, 11136520), (16, 9744455), (20, 7795564), (28, 5568260), (35, 4454608), (40, 3897782), (56, 2784130), (70, 2227304), (80, 1948891), (112, 1392065), (140, 1113652), (280, 556826), (560, 278413)]