645216896

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2089}}^1$

素因数の和:2249

約数の個数: 64

約数和(自身を含む): 1364352000

約数和(自身を除く): 719135104

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 127, 128, 152, 254, 304, 508, 608, 1016, 1216, 2032, 2089, 2413, 2432, 4064, 4178, 4826, 8128, 8356, 9652, 16256, 16712, 19304, 33424, 38608, 39691, 66848, 77216, 79382, 133696, 154432, 158764, 265303, 267392, 308864, 317528, 530606, 635056, 1061212, 1270112, 2122424, 2540224, 4244848, 5040757, 5080448, 8489696, 10081514, 16979392, 20163028, 33958784, 40326056, 80652112, 161304224, 322608448, 645216896]

約数ペア:

[(1, 645216896), (2, 322608448), (4, 161304224), (8, 80652112), (16, 40326056), (19, 33958784), (32, 20163028), (38, 16979392), (64, 10081514), (76, 8489696), (127, 5080448), (128, 5040757), (152, 4244848), (254, 2540224), (304, 2122424), (508, 1270112), (608, 1061212), (1016, 635056), (1216, 530606), (2032, 317528), (2089, 308864), (2413, 267392), (2432, 265303), (4064, 158764), (4178, 154432), (4826, 133696), (8128, 79382), (8356, 77216), (9652, 66848), (16256, 39691), (16712, 38608), (19304, 33424)]