12885800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{3391}}^1$

素因数の和:3426

約数の個数: 48

約数和(自身を含む): 31545600

約数和(自身を除く): 18659800

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, 3391, 3800, 6782, 13564, 16955, 27128, 33910, 64429, 67820, 84775, 128858, 135640, 169550, 257716, 322145, 339100, 515432, 644290, 678200, 1288580, 1610725, 2577160, 3221450, 6442900, 12885800]

約数ペア:

[(1, 12885800), (2, 6442900), (4, 3221450), (5, 2577160), (8, 1610725), (10, 1288580), (19, 678200), (20, 644290), (25, 515432), (38, 339100), (40, 322145), (50, 257716), (76, 169550), (95, 135640), (100, 128858), (152, 84775), (190, 67820), (200, 64429), (380, 33910), (475, 27128), (760, 16955), (950, 13564), (1900, 6782), (3391, 3800)]