20160918920

素因数分解:

$2^3\times 5^1\times {\mathrm{8623}}^1\times {\mathrm{58451}}^1$

素因数の和:67085

約数の個数: 32

約数和(自身を含む): 45368104320

約数和(自身を除く): 25207185400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 8623, 17246, 34492, 43115, 58451, 68984, 86230, 116902, 172460, 233804, 292255, 344920, 467608, 584510, 1169020, 2338040, 504022973, 1008045946, 2016091892, 2520114865, 4032183784, 5040229730, 10080459460, 20160918920]

約数ペア:

[(1, 20160918920), (2, 10080459460), (4, 5040229730), (5, 4032183784), (8, 2520114865), (10, 2016091892), (20, 1008045946), (40, 504022973), (8623, 2338040), (17246, 1169020), (34492, 584510), (43115, 467608), (58451, 344920), (68984, 292255), (86230, 233804), (116902, 172460)]