28781896

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 64209600

約数和(自身を除く): 35427704

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 139, 143, 181, 278, 286, 362, 556, 572, 724, 1112, 1144, 1448, 1529, 1807, 1991, 2353, 3058, 3614, 3982, 4706, 6116, 7228, 7964, 9412, 12232, 14456, 15928, 18824, 19877, 25159, 25883, 39754, 50318, 51766, 79508, 100636, 103532, 159016, 201272, 207064, 276749, 327067, 553498, 654134, 1106996, 1308268, 2213992, 2616536, 3597737, 7195474, 14390948, 28781896]

約数ペア:

[(1, 28781896), (2, 14390948), (4, 7195474), (8, 3597737), (11, 2616536), (13, 2213992), (22, 1308268), (26, 1106996), (44, 654134), (52, 553498), (88, 327067), (104, 276749), (139, 207064), (143, 201272), (181, 159016), (278, 103532), (286, 100636), (362, 79508), (556, 51766), (572, 50318), (724, 39754), (1112, 25883), (1144, 25159), (1448, 19877), (1529, 18824), (1807, 15928), (1991, 14456), (2353, 12232), (3058, 9412), (3614, 7964), (3982, 7228), (4706, 6116)]