18640900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{9811}}^1$

素因数の和:9844

約数の個数: 36

約数和(自身を含む): 42584080

約数和(自身を除く): 23943180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 9811, 19622, 39244, 49055, 98110, 186409, 196220, 245275, 372818, 490550, 745636, 932045, 981100, 1864090, 3728180, 4660225, 9320450, 18640900]

約数ペア:

[(1, 18640900), (2, 9320450), (4, 4660225), (5, 3728180), (10, 1864090), (19, 981100), (20, 932045), (25, 745636), (38, 490550), (50, 372818), (76, 245275), (95, 196220), (100, 186409), (190, 98110), (380, 49055), (475, 39244), (950, 19622), (1900, 9811)]