18274120

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1117}}^1$

素因数の和:1537

約数の個数: 32

約数和(自身を含む): 41254200

約数和(自身を除く): 22980080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1117, 1636, 2045, 2234, 3272, 4090, 4468, 5585, 8180, 8936, 11170, 16360, 22340, 44680, 456853, 913706, 1827412, 2284265, 3654824, 4568530, 9137060, 18274120]

約数ペア:

[(1, 18274120), (2, 9137060), (4, 4568530), (5, 3654824), (8, 2284265), (10, 1827412), (20, 913706), (40, 456853), (409, 44680), (818, 22340), (1117, 16360), (1636, 11170), (2045, 8936), (2234, 8180), (3272, 5585), (4090, 4468)]