522080

素因数分解:

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

素因数の和:279

約数の個数: 48

約数和(自身を含む): 1333584

約数和(自身を除く): 811504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 251, 260, 416, 502, 520, 1004, 1040, 1255, 2008, 2080, 2510, 3263, 4016, 5020, 6526, 8032, 10040, 13052, 16315, 20080, 26104, 32630, 40160, 52208, 65260, 104416, 130520, 261040, 522080]

約数ペア:

[(1, 522080), (2, 261040), (4, 130520), (5, 104416), (8, 65260), (10, 52208), (13, 40160), (16, 32630), (20, 26104), (26, 20080), (32, 16315), (40, 13052), (52, 10040), (65, 8032), (80, 6526), (104, 5020), (130, 4016), (160, 3263), (208, 2510), (251, 2080), (260, 2008), (416, 1255), (502, 1040), (520, 1004)]