389571520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2531}}^1$

素因数の和:2598

約数の個数: 112

約数和(自身を含む): 1026432288

約数和(自身を除く): 636860768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 296, 320, 370, 416, 481, 520, 592, 740, 832, 962, 1040, 1184, 1480, 1924, 2080, 2368, 2405, 2531, 2960, 3848, 4160, 4810, 5062, 5920, 7696, 9620, 10124, 11840, 12655, 15392, 19240, 20248, 25310, 30784, 32903, 38480, 40496, 50620, 65806, 76960, 80992, 93647, 101240, 131612, 153920, 161984, 164515, 187294, 202480, 263224, 329030, 374588, 404960, 468235, 526448, 658060, 749176, 809920, 936470, 1052896, 1217411, 1316120, 1498352, 1872940, 2105792, 2434822, 2632240, 2996704, 3745880, 4869644, 5264480, 5993408, 6087055, 7491760, 9739288, 10528960, 12174110, 14983520, 19478576, 24348220, 29967040, 38957152, 48696440, 77914304, 97392880, 194785760, 389571520]

約数ペア:

[(1, 389571520), (2, 194785760), (4, 97392880), (5, 77914304), (8, 48696440), (10, 38957152), (13, 29967040), (16, 24348220), (20, 19478576), (26, 14983520), (32, 12174110), (37, 10528960), (40, 9739288), (52, 7491760), (64, 6087055), (65, 5993408), (74, 5264480), (80, 4869644), (104, 3745880), (130, 2996704), (148, 2632240), (160, 2434822), (185, 2105792), (208, 1872940), (260, 1498352), (296, 1316120), (320, 1217411), (370, 1052896), (416, 936470), (481, 809920), (520, 749176), (592, 658060), (740, 526448), (832, 468235), (962, 404960), (1040, 374588), (1184, 329030), (1480, 263224), (1924, 202480), (2080, 187294), (2368, 164515), (2405, 161984), (2531, 153920), (2960, 131612), (3848, 101240), (4160, 93647), (4810, 80992), (5062, 76960), (5920, 65806), (7696, 50620), (9620, 40496), (10124, 38480), (11840, 32903), (12655, 30784), (15392, 25310), (19240, 20248)]