20728045364

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1613831}}^1$

素因数の和:1613880

約数の個数: 36

約数和(自身を含む): 41346375840

約数和(自身を除く): 20618330476

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 169, 247, 338, 494, 676, 988, 3211, 6422, 12844, 1613831, 3227662, 6455324, 20979803, 30662789, 41959606, 61325578, 83919212, 122651156, 272737439, 398616257, 545474878, 797232514, 1090949756, 1594465028, 5182011341, 10364022682, 20728045364]

約数ペア:

[(1, 20728045364), (2, 10364022682), (4, 5182011341), (13, 1594465028), (19, 1090949756), (26, 797232514), (38, 545474878), (52, 398616257), (76, 272737439), (169, 122651156), (247, 83919212), (338, 61325578), (494, 41959606), (676, 30662789), (988, 20979803), (3211, 6455324), (6422, 3227662), (12844, 1613831)]