80596990

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 147614400

約数和(自身を除く): 67017410

約数列:

[1, 2, 5, 10, 101, 199, 202, 398, 401, 505, 802, 995, 1010, 1990, 2005, 4010, 20099, 40198, 40501, 79799, 81002, 100495, 159598, 200990, 202505, 398995, 405010, 797990, 8059699, 16119398, 40298495, 80596990]

約数ペア:

[(1, 80596990), (2, 40298495), (5, 16119398), (10, 8059699), (101, 797990), (199, 405010), (202, 398995), (398, 202505), (401, 200990), (505, 159598), (802, 100495), (995, 81002), (1010, 79799), (1990, 40501), (2005, 40198), (4010, 20099)]