16001800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4211}}^1$

素因数の和:4246

約数の個数: 48

約数和(自身を含む): 39171600

約数和(自身を除く): 23169800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 4211, 8422, 16844, 21055, 33688, 42110, 80009, 84220, 105275, 160018, 168440, 210550, 320036, 400045, 421100, 640072, 800090, 842200, 1600180, 2000225, 3200360, 4000450, 8000900, 16001800]

約数ペア:

[(1, 16001800), (2, 8000900), (4, 4000450), (5, 3200360), (8, 2000225), (10, 1600180), (19, 842200), (20, 800090), (25, 640072), (38, 421100), (40, 400045), (50, 320036), (76, 210550), (95, 168440), (100, 160018), (152, 105275), (190, 84220), (200, 80009), (380, 42110), (475, 33688), (760, 21055), (950, 16844), (1900, 8422), (3800, 4211)]