261567982540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{761}}^1\times {\mathrm{2141}}^1$

素因数の和:3283

約数の個数: 96

約数和(自身を含む): 575841571200

約数和(自身を除く): 314273588660

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 349, 460, 698, 761, 1396, 1522, 1745, 2141, 3044, 3490, 3805, 4282, 6980, 7610, 8027, 8564, 10705, 15220, 16054, 17503, 21410, 32108, 35006, 40135, 42820, 49243, 70012, 80270, 87515, 98486, 160540, 175030, 196972, 246215, 265589, 350060, 492430, 531178, 747209, 984860, 1062356, 1327945, 1494418, 1629301, 2655890, 2988836, 3258602, 3736045, 5311780, 6108547, 6517204, 7472090, 8146505, 12217094, 14944180, 16293010, 17185807, 24434188, 30542735, 32586020, 34371614, 37473923, 61085470, 68743228, 74947846, 85929035, 122170940, 149895692, 171858070, 187369615, 343716140, 374739230, 568626049, 749478460, 1137252098, 2274504196, 2843130245, 5686260490, 11372520980, 13078399127, 26156798254, 52313596508, 65391995635, 130783991270, 261567982540]

約数ペア:

[(1, 261567982540), (2, 130783991270), (4, 65391995635), (5, 52313596508), (10, 26156798254), (20, 13078399127), (23, 11372520980), (46, 5686260490), (92, 2843130245), (115, 2274504196), (230, 1137252098), (349, 749478460), (460, 568626049), (698, 374739230), (761, 343716140), (1396, 187369615), (1522, 171858070), (1745, 149895692), (2141, 122170940), (3044, 85929035), (3490, 74947846), (3805, 68743228), (4282, 61085470), (6980, 37473923), (7610, 34371614), (8027, 32586020), (8564, 30542735), (10705, 24434188), (15220, 17185807), (16054, 16293010), (17503, 14944180), (21410, 12217094), (32108, 8146505), (35006, 7472090), (40135, 6517204), (42820, 6108547), (49243, 5311780), (70012, 3736045), (80270, 3258602), (87515, 2988836), (98486, 2655890), (160540, 1629301), (175030, 1494418), (196972, 1327945), (246215, 1062356), (265589, 984860), (350060, 747209), (492430, 531178)]