456820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 1185408

約数和(自身を除く): 728588

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 251, 260, 364, 455, 502, 910, 1004, 1255, 1757, 1820, 2510, 3263, 3514, 5020, 6526, 7028, 8785, 13052, 16315, 17570, 22841, 32630, 35140, 45682, 65260, 91364, 114205, 228410, 456820]

約数ペア:

[(1, 456820), (2, 228410), (4, 114205), (5, 91364), (7, 65260), (10, 45682), (13, 35140), (14, 32630), (20, 22841), (26, 17570), (28, 16315), (35, 13052), (52, 8785), (65, 7028), (70, 6526), (91, 5020), (130, 3514), (140, 3263), (182, 2510), (251, 1820), (260, 1757), (364, 1255), (455, 1004), (502, 910)]