20519486512

素因数分解:

$2^4\times 7^1\times {\mathrm{1789}}^1\times {\mathrm{102409}}^1$

素因数の和:104213

約数の個数: 40

約数和(自身を含む): 45461847200

約数和(自身を除く): 24942360688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1789, 3578, 7156, 12523, 14312, 25046, 28624, 50092, 100184, 102409, 200368, 204818, 409636, 716863, 819272, 1433726, 1638544, 2867452, 5734904, 11469808, 183209701, 366419402, 732838804, 1282467907, 1465677608, 2564935814, 2931355216, 5129871628, 10259743256, 20519486512]

約数ペア:

[(1, 20519486512), (2, 10259743256), (4, 5129871628), (7, 2931355216), (8, 2564935814), (14, 1465677608), (16, 1282467907), (28, 732838804), (56, 366419402), (112, 183209701), (1789, 11469808), (3578, 5734904), (7156, 2867452), (12523, 1638544), (14312, 1433726), (25046, 819272), (28624, 716863), (50092, 409636), (100184, 204818), (102409, 200368)]