25155416

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 55860000

約数和(自身を除く): 30704584

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 121, 143, 242, 286, 484, 572, 968, 1144, 1573, 1999, 3146, 3998, 6292, 7996, 12584, 15992, 21989, 25987, 43978, 51974, 87956, 103948, 175912, 207896, 241879, 285857, 483758, 571714, 967516, 1143428, 1935032, 2286856, 3144427, 6288854, 12577708, 25155416]

約数ペア:

[(1, 25155416), (2, 12577708), (4, 6288854), (8, 3144427), (11, 2286856), (13, 1935032), (22, 1143428), (26, 967516), (44, 571714), (52, 483758), (88, 285857), (104, 241879), (121, 207896), (143, 175912), (242, 103948), (286, 87956), (484, 51974), (572, 43978), (968, 25987), (1144, 21989), (1573, 15992), (1999, 12584), (3146, 7996), (3998, 6292)]