12809800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{3371}}^1$

素因数の和:3406

約数の個数: 48

約数和(自身を含む): 31359600

約数和(自身を除く): 18549800

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, 3371, 3800, 6742, 13484, 16855, 26968, 33710, 64049, 67420, 84275, 128098, 134840, 168550, 256196, 320245, 337100, 512392, 640490, 674200, 1280980, 1601225, 2561960, 3202450, 6404900, 12809800]

約数ペア:

[(1, 12809800), (2, 6404900), (4, 3202450), (5, 2561960), (8, 1601225), (10, 1280980), (19, 674200), (20, 640490), (25, 512392), (38, 337100), (40, 320245), (50, 256196), (76, 168550), (95, 134840), (100, 128098), (152, 84275), (190, 67420), (200, 64049), (380, 33710), (475, 26968), (760, 16855), (950, 13484), (1900, 6742), (3371, 3800)]