80941280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{72269}}^1$

素因数の和:72291

約数の個数: 48

約数和(自身を含む): 218544480

約数和(自身を除く): 137603200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 72269, 144538, 289076, 361345, 505883, 578152, 722690, 1011766, 1156304, 1445380, 2023532, 2312608, 2529415, 2890760, 4047064, 5058830, 5781520, 8094128, 10117660, 11563040, 16188256, 20235320, 40470640, 80941280]

約数ペア:

[(1, 80941280), (2, 40470640), (4, 20235320), (5, 16188256), (7, 11563040), (8, 10117660), (10, 8094128), (14, 5781520), (16, 5058830), (20, 4047064), (28, 2890760), (32, 2529415), (35, 2312608), (40, 2023532), (56, 1445380), (70, 1156304), (80, 1011766), (112, 722690), (140, 578152), (160, 505883), (224, 361345), (280, 289076), (560, 144538), (1120, 72269)]