28068740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{379}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 70607040

約数和(自身を除く): 42538300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 379, 460, 529, 644, 758, 805, 1058, 1516, 1610, 1895, 2116, 2645, 2653, 3220, 3703, 3790, 5290, 5306, 7406, 7580, 8717, 10580, 10612, 13265, 14812, 17434, 18515, 26530, 34868, 37030, 43585, 53060, 61019, 74060, 87170, 122038, 174340, 200491, 244076, 305095, 400982, 610190, 801964, 1002455, 1220380, 1403437, 2004910, 2806874, 4009820, 5613748, 7017185, 14034370, 28068740]

約数ペア:

[(1, 28068740), (2, 14034370), (4, 7017185), (5, 5613748), (7, 4009820), (10, 2806874), (14, 2004910), (20, 1403437), (23, 1220380), (28, 1002455), (35, 801964), (46, 610190), (70, 400982), (92, 305095), (115, 244076), (140, 200491), (161, 174340), (230, 122038), (322, 87170), (379, 74060), (460, 61019), (529, 53060), (644, 43585), (758, 37030), (805, 34868), (1058, 26530), (1516, 18515), (1610, 17434), (1895, 14812), (2116, 13265), (2645, 10612), (2653, 10580), (3220, 8717), (3703, 7580), (3790, 7406), (5290, 5306)]