16982660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 21119740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 251, 340, 398, 502, 796, 995, 1004, 1255, 1990, 2510, 3383, 3980, 4267, 5020, 6766, 8534, 13532, 16915, 17068, 21335, 33830, 42670, 49949, 67660, 85340, 99898, 199796, 249745, 499490, 849133, 998980, 1698266, 3396532, 4245665, 8491330, 16982660]

約数ペア:

[(1, 16982660), (2, 8491330), (4, 4245665), (5, 3396532), (10, 1698266), (17, 998980), (20, 849133), (34, 499490), (68, 249745), (85, 199796), (170, 99898), (199, 85340), (251, 67660), (340, 49949), (398, 42670), (502, 33830), (796, 21335), (995, 17068), (1004, 16915), (1255, 13532), (1990, 8534), (2510, 6766), (3383, 5020), (3980, 4267)]