981569178

素因数分解:

$2^1\times 3^4\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1399}}^1$

素因数の和:1545

約数の個数: 80

約数和(自身を含む): 2268604800

約数和(自身を除く): 1287035622

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 71, 81, 122, 142, 162, 183, 213, 366, 426, 549, 639, 1098, 1278, 1399, 1647, 1917, 2798, 3294, 3834, 4197, 4331, 4941, 5751, 8394, 8662, 9882, 11502, 12591, 12993, 25182, 25986, 37773, 38979, 75546, 77958, 85339, 99329, 113319, 116937, 170678, 198658, 226638, 233874, 256017, 297987, 350811, 512034, 595974, 701622, 768051, 893961, 1536102, 1787922, 2304153, 2681883, 4608306, 5363766, 6059069, 6912459, 8045649, 12118138, 13824918, 16091298, 18177207, 36354414, 54531621, 109063242, 163594863, 327189726, 490784589, 981569178]

約数ペア:

[(1, 981569178), (2, 490784589), (3, 327189726), (6, 163594863), (9, 109063242), (18, 54531621), (27, 36354414), (54, 18177207), (61, 16091298), (71, 13824918), (81, 12118138), (122, 8045649), (142, 6912459), (162, 6059069), (183, 5363766), (213, 4608306), (366, 2681883), (426, 2304153), (549, 1787922), (639, 1536102), (1098, 893961), (1278, 768051), (1399, 701622), (1647, 595974), (1917, 512034), (2798, 350811), (3294, 297987), (3834, 256017), (4197, 233874), (4331, 226638), (4941, 198658), (5751, 170678), (8394, 116937), (8662, 113319), (9882, 99329), (11502, 85339), (12591, 77958), (12993, 75546), (25182, 38979), (25986, 37773)]