256848160

素因数分解:

$2^5\times 5^1\times {\mathrm{241}}^1\times {\mathrm{6661}}^1$

素因数の和:6917

約数の個数: 48

約数和(自身を含む): 609413112

約数和(自身を除く): 352564952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 241, 482, 964, 1205, 1928, 2410, 3856, 4820, 6661, 7712, 9640, 13322, 19280, 26644, 33305, 38560, 53288, 66610, 106576, 133220, 213152, 266440, 532880, 1065760, 1605301, 3210602, 6421204, 8026505, 12842408, 16053010, 25684816, 32106020, 51369632, 64212040, 128424080, 256848160]

約数ペア:

[(1, 256848160), (2, 128424080), (4, 64212040), (5, 51369632), (8, 32106020), (10, 25684816), (16, 16053010), (20, 12842408), (32, 8026505), (40, 6421204), (80, 3210602), (160, 1605301), (241, 1065760), (482, 532880), (964, 266440), (1205, 213152), (1928, 133220), (2410, 106576), (3856, 66610), (4820, 53288), (6661, 38560), (7712, 33305), (9640, 26644), (13322, 19280)]