18335480

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1321}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 41405040

約数和(自身を除く): 23069560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1321, 1388, 1735, 2642, 2776, 3470, 5284, 6605, 6940, 10568, 13210, 13880, 26420, 52840, 458387, 916774, 1833548, 2291935, 3667096, 4583870, 9167740, 18335480]

約数ペア:

[(1, 18335480), (2, 9167740), (4, 4583870), (5, 3667096), (8, 2291935), (10, 1833548), (20, 916774), (40, 458387), (347, 52840), (694, 26420), (1321, 13880), (1388, 13210), (1735, 10568), (2642, 6940), (2776, 6605), (3470, 5284)]