138444800

素因数分解:

$2^{15}\times 5^2\times {\mathrm{13}}^2$

素因数の和:66

約数の個数: 144

約数和(自身を含む): 371780055

約数和(自身を除く): 233335255

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, 169, 200, 208, 256, 260, 320, 325, 338, 400, 416, 512, 520, 640, 650, 676, 800, 832, 845, 1024, 1040, 1280, 1300, 1352, 1600, 1664, 1690, 2048, 2080, 2560, 2600, 2704, 3200, 3328, 3380, 4096, 4160, 4225, 5120, 5200, 5408, 6400, 6656, 6760, 8192, 8320, 8450, 10240, 10400, 10816, 12800, 13312, 13520, 16384, 16640, 16900, 20480, 20800, 21632, 25600, 26624, 27040, 32768, 33280, 33800, 40960, 41600, 43264, 51200, 53248, 54080, 66560, 67600, 81920, 83200, 86528, 102400, 106496, 108160, 133120, 135200, 163840, 166400, 173056, 204800, 212992, 216320, 266240, 270400, 332800, 346112, 409600, 425984, 432640, 532480, 540800, 665600, 692224, 819200, 865280, 1064960, 1081600, 1331200, 1384448, 1730560, 2129920, 2163200, 2662400, 2768896, 3461120, 4326400, 5324800, 5537792, 6922240, 8652800, 10649600, 13844480, 17305600, 27688960, 34611200, 69222400, 138444800]

約数ペア:

[(1, 138444800), (2, 69222400), (4, 34611200), (5, 27688960), (8, 17305600), (10, 13844480), (13, 10649600), (16, 8652800), (20, 6922240), (25, 5537792), (26, 5324800), (32, 4326400), (40, 3461120), (50, 2768896), (52, 2662400), (64, 2163200), (65, 2129920), (80, 1730560), (100, 1384448), (104, 1331200), (128, 1081600), (130, 1064960), (160, 865280), (169, 819200), (200, 692224), (208, 665600), (256, 540800), (260, 532480), (320, 432640), (325, 425984), (338, 409600), (400, 346112), (416, 332800), (512, 270400), (520, 266240), (640, 216320), (650, 212992), (676, 204800), (800, 173056), (832, 166400), (845, 163840), (1024, 135200), (1040, 133120), (1280, 108160), (1300, 106496), (1352, 102400), (1600, 86528), (1664, 83200), (1690, 81920), (2048, 67600), (2080, 66560), (2560, 54080), (2600, 53248), (2704, 51200), (3200, 43264), (3328, 41600), (3380, 40960), (4096, 33800), (4160, 33280), (4225, 32768), (5120, 27040), (5200, 26624), (5408, 25600), (6400, 21632), (6656, 20800), (6760, 20480), (8192, 16900), (8320, 16640), (8450, 16384), (10240, 13520), (10400, 13312), (10816, 12800)]