208585440

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{20693}}^1$

素因数の和:20721

約数の個数: 144

約数和(自身を含む): 813522528

約数和(自身を除く): 604937088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 20693, 41386, 62079, 82772, 103465, 124158, 144851, 165544, 186237, 206930, 248316, 289702, 310395, 331088, 372474, 413860, 434553, 496632, 579404, 620790, 662176, 724255, 744948, 827720, 869106, 931185, 993264, 1158808, 1241580, 1303659, 1448510, 1489896, 1655440, 1738212, 1862370, 1986528, 2172765, 2317616, 2483160, 2607318, 2897020, 2979792, 3310880, 3476424, 3724740, 4345530, 4635232, 4966320, 5214636, 5794040, 5959584, 6518295, 6952848, 7449480, 8691060, 9932640, 10429272, 11588080, 13036590, 13905696, 14898960, 17382120, 20858544, 23176160, 26073180, 29797920, 34764240, 41717088, 52146360, 69528480, 104292720, 208585440]

約数ペア:

[(1, 208585440), (2, 104292720), (3, 69528480), (4, 52146360), (5, 41717088), (6, 34764240), (7, 29797920), (8, 26073180), (9, 23176160), (10, 20858544), (12, 17382120), (14, 14898960), (15, 13905696), (16, 13036590), (18, 11588080), (20, 10429272), (21, 9932640), (24, 8691060), (28, 7449480), (30, 6952848), (32, 6518295), (35, 5959584), (36, 5794040), (40, 5214636), (42, 4966320), (45, 4635232), (48, 4345530), (56, 3724740), (60, 3476424), (63, 3310880), (70, 2979792), (72, 2897020), (80, 2607318), (84, 2483160), (90, 2317616), (96, 2172765), (105, 1986528), (112, 1862370), (120, 1738212), (126, 1655440), (140, 1489896), (144, 1448510), (160, 1303659), (168, 1241580), (180, 1158808), (210, 993264), (224, 931185), (240, 869106), (252, 827720), (280, 744948), (288, 724255), (315, 662176), (336, 620790), (360, 579404), (420, 496632), (480, 434553), (504, 413860), (560, 372474), (630, 331088), (672, 310395), (720, 289702), (840, 248316), (1008, 206930), (1120, 186237), (1260, 165544), (1440, 144851), (1680, 124158), (2016, 103465), (2520, 82772), (3360, 62079), (5040, 41386), (10080, 20693)]