18281420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{48109}}^1$

素因数の和:48137

約数の個数: 24

約数和(自身を含む): 40412400

約数和(自身を除く): 22130980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 48109, 96218, 192436, 240545, 481090, 914071, 962180, 1828142, 3656284, 4570355, 9140710, 18281420]

約数ペア:

[(1, 18281420), (2, 9140710), (4, 4570355), (5, 3656284), (10, 1828142), (19, 962180), (20, 914071), (38, 481090), (76, 240545), (95, 192436), (190, 96218), (380, 48109)]