215321600

素因数分解:

$2^{10}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:690

約数の個数: 132

約数和(自身を含む): 575681904

約数和(自身を除く): 360360304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 512, 520, 640, 647, 650, 800, 832, 1024, 1040, 1280, 1294, 1300, 1600, 1664, 2080, 2560, 2588, 2600, 3200, 3235, 3328, 4160, 5120, 5176, 5200, 6400, 6470, 6656, 8320, 8411, 10352, 10400, 12800, 12940, 13312, 16175, 16640, 16822, 20704, 20800, 25600, 25880, 32350, 33280, 33644, 41408, 41600, 42055, 51760, 64700, 66560, 67288, 82816, 83200, 84110, 103520, 129400, 134576, 165632, 166400, 168220, 207040, 210275, 258800, 269152, 331264, 332800, 336440, 414080, 420550, 517600, 538304, 662528, 672880, 828160, 841100, 1035200, 1076608, 1345760, 1656320, 1682200, 2070400, 2153216, 2691520, 3312640, 3364400, 4140800, 4306432, 5383040, 6728800, 8281600, 8612864, 10766080, 13457600, 16563200, 21532160, 26915200, 43064320, 53830400, 107660800, 215321600]

約数ペア:

[(1, 215321600), (2, 107660800), (4, 53830400), (5, 43064320), (8, 26915200), (10, 21532160), (13, 16563200), (16, 13457600), (20, 10766080), (25, 8612864), (26, 8281600), (32, 6728800), (40, 5383040), (50, 4306432), (52, 4140800), (64, 3364400), (65, 3312640), (80, 2691520), (100, 2153216), (104, 2070400), (128, 1682200), (130, 1656320), (160, 1345760), (200, 1076608), (208, 1035200), (256, 841100), (260, 828160), (320, 672880), (325, 662528), (400, 538304), (416, 517600), (512, 420550), (520, 414080), (640, 336440), (647, 332800), (650, 331264), (800, 269152), (832, 258800), (1024, 210275), (1040, 207040), (1280, 168220), (1294, 166400), (1300, 165632), (1600, 134576), (1664, 129400), (2080, 103520), (2560, 84110), (2588, 83200), (2600, 82816), (3200, 67288), (3235, 66560), (3328, 64700), (4160, 51760), (5120, 42055), (5176, 41600), (5200, 41408), (6400, 33644), (6470, 33280), (6656, 32350), (8320, 25880), (8411, 25600), (10352, 20800), (10400, 20704), (12800, 16822), (12940, 16640), (13312, 16175)]