19820800

素因数分解:

$2^8\times 5^2\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:208

約数の個数: 108

約数和(自身を含む): 51958480

約数和(自身を除く): 32137680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 128, 152, 160, 163, 190, 200, 256, 304, 320, 326, 380, 400, 475, 608, 640, 652, 760, 800, 815, 950, 1216, 1280, 1304, 1520, 1600, 1630, 1900, 2432, 2608, 3040, 3097, 3200, 3260, 3800, 4075, 4864, 5216, 6080, 6194, 6400, 6520, 7600, 8150, 10432, 12160, 12388, 13040, 15200, 15485, 16300, 20864, 24320, 24776, 26080, 30400, 30970, 32600, 41728, 49552, 52160, 60800, 61940, 65200, 77425, 99104, 104320, 121600, 123880, 130400, 154850, 198208, 208640, 247760, 260800, 309700, 396416, 495520, 521600, 619400, 792832, 991040, 1043200, 1238800, 1982080, 2477600, 3964160, 4955200, 9910400, 19820800]

約数ペア:

[(1, 19820800), (2, 9910400), (4, 4955200), (5, 3964160), (8, 2477600), (10, 1982080), (16, 1238800), (19, 1043200), (20, 991040), (25, 792832), (32, 619400), (38, 521600), (40, 495520), (50, 396416), (64, 309700), (76, 260800), (80, 247760), (95, 208640), (100, 198208), (128, 154850), (152, 130400), (160, 123880), (163, 121600), (190, 104320), (200, 99104), (256, 77425), (304, 65200), (320, 61940), (326, 60800), (380, 52160), (400, 49552), (475, 41728), (608, 32600), (640, 30970), (652, 30400), (760, 26080), (800, 24776), (815, 24320), (950, 20864), (1216, 16300), (1280, 15485), (1304, 15200), (1520, 13040), (1600, 12388), (1630, 12160), (1900, 10432), (2432, 8150), (2608, 7600), (3040, 6520), (3097, 6400), (3200, 6194), (3260, 6080), (3800, 5216), (4075, 4864)]