20178690848

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{90823}}^1$

素因数の和:91017

約数の個数: 48

約数和(自身を含む): 40785788736

約数和(自身を除く): 20607097888

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 131, 212, 262, 424, 524, 848, 1048, 1696, 2096, 4192, 6943, 13886, 27772, 55544, 90823, 111088, 181646, 222176, 363292, 726584, 1453168, 2906336, 4813619, 9627238, 11897813, 19254476, 23795626, 38508952, 47591252, 77017904, 95182504, 154035808, 190365008, 380730016, 630584089, 1261168178, 2522336356, 5044672712, 10089345424, 20178690848]

約数ペア:

[(1, 20178690848), (2, 10089345424), (4, 5044672712), (8, 2522336356), (16, 1261168178), (32, 630584089), (53, 380730016), (106, 190365008), (131, 154035808), (212, 95182504), (262, 77017904), (424, 47591252), (524, 38508952), (848, 23795626), (1048, 19254476), (1696, 11897813), (2096, 9627238), (4192, 4813619), (6943, 2906336), (13886, 1453168), (27772, 726584), (55544, 363292), (90823, 222176), (111088, 181646)]