855792020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1\times {\mathrm{2819}}^1$

素因数の和:3224

約数の個数: 48

約数和(自身を含む): 1844821440

約数和(自身を除く): 989029420

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 353, 430, 706, 860, 1412, 1765, 2819, 3530, 5638, 7060, 11276, 14095, 15179, 28190, 30358, 56380, 60716, 75895, 121217, 151790, 242434, 303580, 484868, 606085, 995107, 1212170, 1990214, 2424340, 3980428, 4975535, 9951070, 19902140, 42789601, 85579202, 171158404, 213948005, 427896010, 855792020]

約数ペア:

[(1, 855792020), (2, 427896010), (4, 213948005), (5, 171158404), (10, 85579202), (20, 42789601), (43, 19902140), (86, 9951070), (172, 4975535), (215, 3980428), (353, 2424340), (430, 1990214), (706, 1212170), (860, 995107), (1412, 606085), (1765, 484868), (2819, 303580), (3530, 242434), (5638, 151790), (7060, 121217), (11276, 75895), (14095, 60716), (15179, 56380), (28190, 30358)]