20883200

素因数分解:

$2^8\times 5^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:290

約数の個数: 108

約数和(自身を含む): 55887048

約数和(自身を除く): 35003848

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, 251, 256, 260, 320, 325, 400, 416, 502, 520, 640, 650, 800, 832, 1004, 1040, 1255, 1280, 1300, 1600, 1664, 2008, 2080, 2510, 2600, 3200, 3263, 3328, 4016, 4160, 5020, 5200, 6275, 6400, 6526, 8032, 8320, 10040, 10400, 12550, 13052, 16064, 16315, 16640, 20080, 20800, 25100, 26104, 32128, 32630, 40160, 41600, 50200, 52208, 64256, 65260, 80320, 81575, 83200, 100400, 104416, 130520, 160640, 163150, 200800, 208832, 261040, 321280, 326300, 401600, 417664, 522080, 652600, 803200, 835328, 1044160, 1305200, 1606400, 2088320, 2610400, 4176640, 5220800, 10441600, 20883200]

約数ペア:

[(1, 20883200), (2, 10441600), (4, 5220800), (5, 4176640), (8, 2610400), (10, 2088320), (13, 1606400), (16, 1305200), (20, 1044160), (25, 835328), (26, 803200), (32, 652600), (40, 522080), (50, 417664), (52, 401600), (64, 326300), (65, 321280), (80, 261040), (100, 208832), (104, 200800), (128, 163150), (130, 160640), (160, 130520), (200, 104416), (208, 100400), (251, 83200), (256, 81575), (260, 80320), (320, 65260), (325, 64256), (400, 52208), (416, 50200), (502, 41600), (520, 40160), (640, 32630), (650, 32128), (800, 26104), (832, 25100), (1004, 20800), (1040, 20080), (1255, 16640), (1280, 16315), (1300, 16064), (1600, 13052), (1664, 12550), (2008, 10400), (2080, 10040), (2510, 8320), (2600, 8032), (3200, 6526), (3263, 6400), (3328, 6275), (4016, 5200), (4160, 5020)]