131755960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:581

約数の個数: 128

約数和(自身を含む): 362880000

約数和(自身を除く): 231124040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 41, 46, 56, 70, 82, 92, 115, 140, 161, 164, 184, 205, 230, 280, 287, 322, 328, 410, 460, 499, 574, 644, 805, 820, 920, 943, 998, 1148, 1288, 1435, 1610, 1640, 1886, 1996, 2296, 2495, 2870, 3220, 3493, 3772, 3992, 4715, 4990, 5740, 6440, 6601, 6986, 7544, 9430, 9980, 11477, 11480, 13202, 13972, 17465, 18860, 19960, 20459, 22954, 26404, 27944, 33005, 34930, 37720, 40918, 45908, 52808, 57385, 66010, 69860, 80339, 81836, 91816, 102295, 114770, 132020, 139720, 143213, 160678, 163672, 204590, 229540, 264040, 286426, 321356, 401695, 409180, 459080, 470557, 572852, 642712, 716065, 803390, 818360, 941114, 1145704, 1432130, 1606780, 1882228, 2352785, 2864260, 3213560, 3293899, 3764456, 4705570, 5728520, 6587798, 9411140, 13175596, 16469495, 18822280, 26351192, 32938990, 65877980, 131755960]

約数ペア:

[(1, 131755960), (2, 65877980), (4, 32938990), (5, 26351192), (7, 18822280), (8, 16469495), (10, 13175596), (14, 9411140), (20, 6587798), (23, 5728520), (28, 4705570), (35, 3764456), (40, 3293899), (41, 3213560), (46, 2864260), (56, 2352785), (70, 1882228), (82, 1606780), (92, 1432130), (115, 1145704), (140, 941114), (161, 818360), (164, 803390), (184, 716065), (205, 642712), (230, 572852), (280, 470557), (287, 459080), (322, 409180), (328, 401695), (410, 321356), (460, 286426), (499, 264040), (574, 229540), (644, 204590), (805, 163672), (820, 160678), (920, 143213), (943, 139720), (998, 132020), (1148, 114770), (1288, 102295), (1435, 91816), (1610, 81836), (1640, 80339), (1886, 69860), (1996, 66010), (2296, 57385), (2495, 52808), (2870, 45908), (3220, 40918), (3493, 37720), (3772, 34930), (3992, 33005), (4715, 27944), (4990, 26404), (5740, 22954), (6440, 20459), (6601, 19960), (6986, 18860), (7544, 17465), (9430, 13972), (9980, 13202), (11477, 11480)]