400018049336

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2647}}^1\times {\mathrm{11171}}^1$

素因数の和:13932

約数の個数: 64

約数和(自身を含む): 798753312000

約数和(自身を除く): 398735262664

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1691, 2647, 3382, 5294, 6764, 10588, 11171, 13528, 21176, 22342, 44684, 50293, 89368, 100586, 201172, 212249, 235583, 402344, 424498, 471166, 848996, 942332, 994219, 1697992, 1884664, 1988438, 3976876, 4476077, 7953752, 8952154, 17904308, 18890161, 29569637, 35808616, 37780322, 59139274, 75560644, 118278548, 151121288, 236557096, 561823103, 1123646206, 2247292412, 2631697693, 4494584824, 5263395386, 10526790772, 21053581544, 50002256167, 100004512334, 200009024668, 400018049336]

約数ペア:

[(1, 400018049336), (2, 200009024668), (4, 100004512334), (8, 50002256167), (19, 21053581544), (38, 10526790772), (76, 5263395386), (89, 4494584824), (152, 2631697693), (178, 2247292412), (356, 1123646206), (712, 561823103), (1691, 236557096), (2647, 151121288), (3382, 118278548), (5294, 75560644), (6764, 59139274), (10588, 37780322), (11171, 35808616), (13528, 29569637), (21176, 18890161), (22342, 17904308), (44684, 8952154), (50293, 7953752), (89368, 4476077), (100586, 3976876), (201172, 1988438), (212249, 1884664), (235583, 1697992), (402344, 994219), (424498, 942332), (471166, 848996)]