18499420

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3517}}^1$

素因数の和:3789

約数の個数: 24

約数和(自身を含む): 39007584

約数和(自身を除く): 20508164

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3517, 5260, 7034, 14068, 17585, 35170, 70340, 924971, 1849942, 3699884, 4624855, 9249710, 18499420]

約数ペア:

[(1, 18499420), (2, 9249710), (4, 4624855), (5, 3699884), (10, 1849942), (20, 924971), (263, 70340), (526, 35170), (1052, 17585), (1315, 14068), (2630, 7034), (3517, 5260)]