208515428

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^2\times {\mathrm{233}}^1$

素因数の和:345

約数の個数: 54

約数和(自身を含む): 412397622

約数和(自身を除く): 203882194

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 233, 242, 466, 473, 484, 932, 946, 1849, 1892, 2563, 3698, 5126, 5203, 7396, 10019, 10252, 10406, 20038, 20339, 20812, 28193, 40076, 40678, 56386, 81356, 110209, 112772, 220418, 223729, 430817, 440836, 447458, 861634, 894916, 1212299, 1723268, 2424598, 4738987, 4849196, 9477974, 18955948, 52128857, 104257714, 208515428]

約数ペア:

[(1, 208515428), (2, 104257714), (4, 52128857), (11, 18955948), (22, 9477974), (43, 4849196), (44, 4738987), (86, 2424598), (121, 1723268), (172, 1212299), (233, 894916), (242, 861634), (466, 447458), (473, 440836), (484, 430817), (932, 223729), (946, 220418), (1849, 112772), (1892, 110209), (2563, 81356), (3698, 56386), (5126, 40678), (5203, 40076), (7396, 28193), (10019, 20812), (10252, 20339), (10406, 20038)]