7820800

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:88

約数の個数: 120

約数和(自身を含む): 21311136

約数和(自身を除く): 13490336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 47, 50, 52, 64, 65, 80, 94, 100, 104, 128, 130, 160, 188, 200, 208, 235, 256, 260, 320, 325, 376, 400, 416, 470, 512, 520, 611, 640, 650, 752, 800, 832, 940, 1040, 1175, 1222, 1280, 1300, 1504, 1600, 1664, 1880, 2080, 2350, 2444, 2560, 2600, 3008, 3055, 3200, 3328, 3760, 4160, 4700, 4888, 5200, 6016, 6110, 6400, 6656, 7520, 8320, 9400, 9776, 10400, 12032, 12220, 12800, 15040, 15275, 16640, 18800, 19552, 20800, 24064, 24440, 30080, 30550, 33280, 37600, 39104, 41600, 48880, 60160, 61100, 75200, 78208, 83200, 97760, 120320, 122200, 150400, 156416, 166400, 195520, 244400, 300800, 312832, 391040, 488800, 601600, 782080, 977600, 1564160, 1955200, 3910400, 7820800]

約数ペア:

[(1, 7820800), (2, 3910400), (4, 1955200), (5, 1564160), (8, 977600), (10, 782080), (13, 601600), (16, 488800), (20, 391040), (25, 312832), (26, 300800), (32, 244400), (40, 195520), (47, 166400), (50, 156416), (52, 150400), (64, 122200), (65, 120320), (80, 97760), (94, 83200), (100, 78208), (104, 75200), (128, 61100), (130, 60160), (160, 48880), (188, 41600), (200, 39104), (208, 37600), (235, 33280), (256, 30550), (260, 30080), (320, 24440), (325, 24064), (376, 20800), (400, 19552), (416, 18800), (470, 16640), (512, 15275), (520, 15040), (611, 12800), (640, 12220), (650, 12032), (752, 10400), (800, 9776), (832, 9400), (940, 8320), (1040, 7520), (1175, 6656), (1222, 6400), (1280, 6110), (1300, 6016), (1504, 5200), (1600, 4888), (1664, 4700), (1880, 4160), (2080, 3760), (2350, 3328), (2444, 3200), (2560, 3055), (2600, 3008)]