204118420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21577}}^1$

素因数の和:21640

約数の個数: 48

約数和(自身を含む): 478513728

約数和(自身を除く): 274395308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 21577, 43154, 86308, 107885, 215770, 237347, 431540, 474694, 927811, 949388, 1186735, 1855622, 2373470, 3711244, 4639055, 4746940, 9278110, 10205921, 18556220, 20411842, 40823684, 51029605, 102059210, 204118420]

約数ペア:

[(1, 204118420), (2, 102059210), (4, 51029605), (5, 40823684), (10, 20411842), (11, 18556220), (20, 10205921), (22, 9278110), (43, 4746940), (44, 4639055), (55, 3711244), (86, 2373470), (110, 1855622), (172, 1186735), (215, 949388), (220, 927811), (430, 474694), (473, 431540), (860, 237347), (946, 215770), (1892, 107885), (2365, 86308), (4730, 43154), (9460, 21577)]