161621805

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{1621}}^1$

素因数の和:1686

約数の個数: 48

約数和(自身を含む): 286821504

約数和(自身を除く): 125199699

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 289, 345, 391, 867, 1173, 1445, 1621, 1955, 4335, 4863, 5865, 6647, 8105, 19941, 24315, 27557, 33235, 37283, 82671, 99705, 111849, 137785, 186415, 413355, 468469, 559245, 633811, 1405407, 1901433, 2342345, 3169055, 7027035, 9507165, 10774787, 32324361, 53873935, 161621805]

約数ペア:

[(1, 161621805), (3, 53873935), (5, 32324361), (15, 10774787), (17, 9507165), (23, 7027035), (51, 3169055), (69, 2342345), (85, 1901433), (115, 1405407), (255, 633811), (289, 559245), (345, 468469), (391, 413355), (867, 186415), (1173, 137785), (1445, 111849), (1621, 99705), (1955, 82671), (4335, 37283), (4863, 33235), (5865, 27557), (6647, 24315), (8105, 19941)]