13505720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3343}}^1$

素因数の和:3455

約数の個数: 32

約数和(自身を含む): 30697920

約数和(自身を除く): 17192200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 3343, 4040, 6686, 13372, 16715, 26744, 33430, 66860, 133720, 337643, 675286, 1350572, 1688215, 2701144, 3376430, 6752860, 13505720]

約数ペア:

[(1, 13505720), (2, 6752860), (4, 3376430), (5, 2701144), (8, 1688215), (10, 1350572), (20, 675286), (40, 337643), (101, 133720), (202, 66860), (404, 33430), (505, 26744), (808, 16715), (1010, 13372), (2020, 6686), (3343, 4040)]