207863440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 499968000

約数和(自身を除く): 292104560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 127, 164, 205, 254, 328, 410, 499, 508, 635, 656, 820, 998, 1016, 1270, 1640, 1996, 2032, 2495, 2540, 3280, 3992, 4990, 5080, 5207, 7984, 9980, 10160, 10414, 19960, 20459, 20828, 26035, 39920, 40918, 41656, 52070, 63373, 81836, 83312, 102295, 104140, 126746, 163672, 204590, 208280, 253492, 316865, 327344, 409180, 416560, 506984, 633730, 818360, 1013968, 1267460, 1636720, 2534920, 2598293, 5069840, 5196586, 10393172, 12991465, 20786344, 25982930, 41572688, 51965860, 103931720, 207863440]

約数ペア:

[(1, 207863440), (2, 103931720), (4, 51965860), (5, 41572688), (8, 25982930), (10, 20786344), (16, 12991465), (20, 10393172), (40, 5196586), (41, 5069840), (80, 2598293), (82, 2534920), (127, 1636720), (164, 1267460), (205, 1013968), (254, 818360), (328, 633730), (410, 506984), (499, 416560), (508, 409180), (635, 327344), (656, 316865), (820, 253492), (998, 208280), (1016, 204590), (1270, 163672), (1640, 126746), (1996, 104140), (2032, 102295), (2495, 83312), (2540, 81836), (3280, 63373), (3992, 52070), (4990, 41656), (5080, 40918), (5207, 39920), (7984, 26035), (9980, 20828), (10160, 20459), (10414, 19960)]