31388560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2437}}^1$

素因数の和:2480

約数の個数: 80

約数和(自身を含む): 87065856

約数和(自身を除く): 55677296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2437, 2576, 3220, 4874, 6440, 9748, 12185, 12880, 17059, 19496, 24370, 34118, 38992, 48740, 56051, 68236, 85295, 97480, 112102, 136472, 170590, 194960, 224204, 272944, 280255, 341180, 392357, 448408, 560510, 682360, 784714, 896816, 1121020, 1364720, 1569428, 1961785, 2242040, 3138856, 3923570, 4484080, 6277712, 7847140, 15694280, 31388560]

約数ペア:

[(1, 31388560), (2, 15694280), (4, 7847140), (5, 6277712), (7, 4484080), (8, 3923570), (10, 3138856), (14, 2242040), (16, 1961785), (20, 1569428), (23, 1364720), (28, 1121020), (35, 896816), (40, 784714), (46, 682360), (56, 560510), (70, 448408), (80, 392357), (92, 341180), (112, 280255), (115, 272944), (140, 224204), (161, 194960), (184, 170590), (230, 136472), (280, 112102), (322, 97480), (368, 85295), (460, 68236), (560, 56051), (644, 48740), (805, 38992), (920, 34118), (1288, 24370), (1610, 19496), (1840, 17059), (2437, 12880), (2576, 12185), (3220, 9748), (4874, 6440)]