202401980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9109}}^1$

素因数の和:9230

約数の個数: 48

約数和(自身を含む): 468326880

約数和(自身を除く): 265924900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 4444, 5555, 9109, 11110, 18218, 22220, 36436, 45545, 91090, 100199, 182180, 200398, 400796, 500995, 920009, 1001990, 1840018, 2003980, 3680036, 4600045, 9200090, 10120099, 18400180, 20240198, 40480396, 50600495, 101200990, 202401980]

約数ペア:

[(1, 202401980), (2, 101200990), (4, 50600495), (5, 40480396), (10, 20240198), (11, 18400180), (20, 10120099), (22, 9200090), (44, 4600045), (55, 3680036), (101, 2003980), (110, 1840018), (202, 1001990), (220, 920009), (404, 500995), (505, 400796), (1010, 200398), (1111, 182180), (2020, 100199), (2222, 91090), (4444, 45545), (5555, 36436), (9109, 22220), (11110, 18218)]