2210890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 4406400

約数和(自身を除く): 2195510

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 199, 202, 398, 505, 995, 1010, 1111, 1990, 2189, 2222, 4378, 5555, 10945, 11110, 20099, 21890, 40198, 100495, 200990, 221089, 442178, 1105445, 2210890]

約数ペア:

[(1, 2210890), (2, 1105445), (5, 442178), (10, 221089), (11, 200990), (22, 100495), (55, 40198), (101, 21890), (110, 20099), (199, 11110), (202, 10945), (398, 5555), (505, 4378), (995, 2222), (1010, 2189), (1111, 1990)]