20801617.000000000

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2843}}^1$

素因数の和:2909

約数の個数: 96

約数和(自身を含む): 425917440

約数和(自身を除く): 279969192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 31, 36, 46, 62, 69, 72, 92, 93, 124, 138, 184, 186, 207, 248, 276, 279, 372, 414, 552, 558, 713, 744, 828, 1116, 1426, 1656, 2139, 2232, 2843, 2852, 4278, 5686, 5704, 6417, 8529, 8556, 11372, 12834, 17058, 17112, 22744, 25587, 25668, 34116, 51174, 51336, 65389, 68232, 88133, 102348, 130778, 176266, 196167, 204696, 261556, 264399, 352532, 392334, 523112, 528798, 588501, 705064, 784668, 793197, 1057596, 1177002, 1569336, 1586394, 2027059, 2115192, 2354004, 3172788, 4054118, 4708008, 6081177, 6345576, 8108236, 12162354, 16216472, 18243531, 24324708, 36487062, 48649416, 72974124, 145948248]

約数ペア:

[(1, 145948248), (2, 72974124), (3, 48649416), (4, 36487062), (6, 24324708), (8, 18243531), (9, 16216472), (12, 12162354), (18, 8108236), (23, 6345576), (24, 6081177), (31, 4708008), (36, 4054118), (46, 3172788), (62, 2354004), (69, 2115192), (72, 2027059), (92, 1586394), (93, 1569336), (124, 1177002), (138, 1057596), (184, 793197), (186, 784668), (207, 705064), (248, 588501), (276, 528798), (279, 523112), (372, 392334), (414, 352532), (552, 264399), (558, 261556), (713, 204696), (744, 196167), (828, 176266), (1116, 130778), (1426, 102348), (1656, 88133), (2139, 68232), (2232, 65389), (2843, 51336), (2852, 51174), (4278, 34116), (5686, 25668), (5704, 25587), (6417, 22744), (8529, 17112), (8556, 17058), (11372, 12834)]