18205420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2083}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 42013440

約数和(自身を除く): 23808020

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2083, 2185, 4166, 4370, 8332, 8740, 10415, 20830, 39577, 41660, 47909, 79154, 95818, 158308, 191636, 197885, 239545, 395770, 479090, 791540, 910271, 958180, 1820542, 3641084, 4551355, 9102710, 18205420]

約数ペア:

[(1, 18205420), (2, 9102710), (4, 4551355), (5, 3641084), (10, 1820542), (19, 958180), (20, 910271), (23, 791540), (38, 479090), (46, 395770), (76, 239545), (92, 197885), (95, 191636), (115, 158308), (190, 95818), (230, 79154), (380, 47909), (437, 41660), (460, 39577), (874, 20830), (1748, 10415), (2083, 8740), (2185, 8332), (4166, 4370)]