4176640

素因数分解:

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

素因数の和:285

約数の個数: 72

約数和(自身を含む): 10816848

約数和(自身を除く): 6640208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 251, 256, 260, 320, 416, 502, 520, 640, 832, 1004, 1040, 1255, 1280, 1664, 2008, 2080, 2510, 3263, 3328, 4016, 4160, 5020, 6526, 8032, 8320, 10040, 13052, 16064, 16315, 16640, 20080, 26104, 32128, 32630, 40160, 52208, 64256, 65260, 80320, 104416, 130520, 160640, 208832, 261040, 321280, 417664, 522080, 835328, 1044160, 2088320, 4176640]

約数ペア:

[(1, 4176640), (2, 2088320), (4, 1044160), (5, 835328), (8, 522080), (10, 417664), (13, 321280), (16, 261040), (20, 208832), (26, 160640), (32, 130520), (40, 104416), (52, 80320), (64, 65260), (65, 64256), (80, 52208), (104, 40160), (128, 32630), (130, 32128), (160, 26104), (208, 20080), (251, 16640), (256, 16315), (260, 16064), (320, 13052), (416, 10040), (502, 8320), (520, 8032), (640, 6526), (832, 5020), (1004, 4160), (1040, 4016), (1255, 3328), (1280, 3263), (1664, 2510), (2008, 2080)]