2019918368

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{89}}^2\times {\mathrm{613}}^1$

素因数の和:814

約数の個数: 72

約数和(自身を含む): 4338341028

約数和(自身を除く): 2318422660

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 89, 104, 178, 208, 356, 416, 613, 712, 1157, 1226, 1424, 2314, 2452, 2848, 4628, 4904, 7921, 7969, 9256, 9808, 15842, 15938, 18512, 19616, 31684, 31876, 37024, 54557, 63368, 63752, 102973, 109114, 126736, 127504, 205946, 218228, 253472, 255008, 411892, 436456, 709241, 823784, 872912, 1418482, 1647568, 1745824, 2836964, 3295136, 4855573, 5673928, 9711146, 11347856, 19422292, 22695712, 38844584, 63122449, 77689168, 126244898, 155378336, 252489796, 504979592, 1009959184, 2019918368]

約数ペア:

[(1, 2019918368), (2, 1009959184), (4, 504979592), (8, 252489796), (13, 155378336), (16, 126244898), (26, 77689168), (32, 63122449), (52, 38844584), (89, 22695712), (104, 19422292), (178, 11347856), (208, 9711146), (356, 5673928), (416, 4855573), (613, 3295136), (712, 2836964), (1157, 1745824), (1226, 1647568), (1424, 1418482), (2314, 872912), (2452, 823784), (2848, 709241), (4628, 436456), (4904, 411892), (7921, 255008), (7969, 253472), (9256, 218228), (9808, 205946), (15842, 127504), (15938, 126736), (18512, 109114), (19616, 102973), (31684, 63752), (31876, 63368), (37024, 54557)]