18494120

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1153}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 41751720

約数和(自身を除く): 23257600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1153, 1604, 2005, 2306, 3208, 4010, 4612, 5765, 8020, 9224, 11530, 16040, 23060, 46120, 462353, 924706, 1849412, 2311765, 3698824, 4623530, 9247060, 18494120]

約数ペア:

[(1, 18494120), (2, 9247060), (4, 4623530), (5, 3698824), (8, 2311765), (10, 1849412), (20, 924706), (40, 462353), (401, 46120), (802, 23060), (1153, 16040), (1604, 11530), (2005, 9224), (2306, 8020), (3208, 5765), (4010, 4612)]