28898120

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 68739840

約数和(自身を除く): 39841720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 101, 115, 184, 202, 230, 311, 404, 460, 505, 622, 808, 920, 1010, 1244, 1555, 2020, 2323, 2488, 3110, 4040, 4646, 6220, 7153, 9292, 11615, 12440, 14306, 18584, 23230, 28612, 31411, 35765, 46460, 57224, 62822, 71530, 92920, 125644, 143060, 157055, 251288, 286120, 314110, 628220, 722453, 1256440, 1444906, 2889812, 3612265, 5779624, 7224530, 14449060, 28898120]

約数ペア:

[(1, 28898120), (2, 14449060), (4, 7224530), (5, 5779624), (8, 3612265), (10, 2889812), (20, 1444906), (23, 1256440), (40, 722453), (46, 628220), (92, 314110), (101, 286120), (115, 251288), (184, 157055), (202, 143060), (230, 125644), (311, 92920), (404, 71530), (460, 62822), (505, 57224), (622, 46460), (808, 35765), (920, 31411), (1010, 28612), (1244, 23230), (1555, 18584), (2020, 14306), (2323, 12440), (2488, 11615), (3110, 9292), (4040, 7153), (4646, 6220)]