81915040

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:290

約数の個数: 96

約数和(自身を含む): 202187664

約数和(自身を除く): 120272624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 101, 137, 148, 160, 185, 202, 274, 296, 370, 404, 505, 548, 592, 685, 740, 808, 1010, 1096, 1184, 1370, 1480, 1616, 2020, 2192, 2740, 2960, 3232, 3737, 4040, 4384, 5069, 5480, 5920, 7474, 8080, 10138, 10960, 13837, 14948, 16160, 18685, 20276, 21920, 25345, 27674, 29896, 37370, 40552, 50690, 55348, 59792, 69185, 74740, 81104, 101380, 110696, 119584, 138370, 149480, 162208, 202760, 221392, 276740, 298960, 405520, 442784, 511969, 553480, 597920, 811040, 1023938, 1106960, 2047876, 2213920, 2559845, 4095752, 5119690, 8191504, 10239380, 16383008, 20478760, 40957520, 81915040]

約数ペア:

[(1, 81915040), (2, 40957520), (4, 20478760), (5, 16383008), (8, 10239380), (10, 8191504), (16, 5119690), (20, 4095752), (32, 2559845), (37, 2213920), (40, 2047876), (74, 1106960), (80, 1023938), (101, 811040), (137, 597920), (148, 553480), (160, 511969), (185, 442784), (202, 405520), (274, 298960), (296, 276740), (370, 221392), (404, 202760), (505, 162208), (548, 149480), (592, 138370), (685, 119584), (740, 110696), (808, 101380), (1010, 81104), (1096, 74740), (1184, 69185), (1370, 59792), (1480, 55348), (1616, 50690), (2020, 40552), (2192, 37370), (2740, 29896), (2960, 27674), (3232, 25345), (3737, 21920), (4040, 20276), (4384, 18685), (5069, 16160), (5480, 14948), (5920, 13837), (7474, 10960), (8080, 10138)]