261015248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{23677}}^1$

素因数の和:23751

約数の個数: 40

約数和(自身を含む): 554917608

約数和(自身を除く): 293902360

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 2756, 5512, 11024, 23677, 47354, 94708, 189416, 307801, 378832, 615602, 1231204, 1254881, 2462408, 2509762, 4924816, 5019524, 10039048, 16313453, 20078096, 32626906, 65253812, 130507624, 261015248]

約数ペア:

[(1, 261015248), (2, 130507624), (4, 65253812), (8, 32626906), (13, 20078096), (16, 16313453), (26, 10039048), (52, 5019524), (53, 4924816), (104, 2509762), (106, 2462408), (208, 1254881), (212, 1231204), (424, 615602), (689, 378832), (848, 307801), (1378, 189416), (2756, 94708), (5512, 47354), (11024, 23677)]