20201207960

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{5000299}}^1$

素因数の和:5000411

約数の個数: 32

約数和(自身を含む): 45902754000

約数和(自身を除く): 25701546040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 5000299, 10000598, 20001196, 25001495, 40002392, 50002990, 100005980, 200011960, 505030199, 1010060398, 2020120796, 2525150995, 4040241592, 5050301990, 10100603980, 20201207960]

約数ペア:

[(1, 20201207960), (2, 10100603980), (4, 5050301990), (5, 4040241592), (8, 2525150995), (10, 2020120796), (20, 1010060398), (40, 505030199), (101, 200011960), (202, 100005980), (404, 50002990), (505, 40002392), (808, 25001495), (1010, 20001196), (2020, 10000598), (4040, 5000299)]