257398845

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{6473}}^1$

素因数の和:6733

約数の個数: 32

約数和(自身を含む): 451211904

約数和(自身を除く): 193813059

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 241, 723, 1205, 2651, 3615, 6473, 7953, 13255, 19419, 32365, 39765, 71203, 97095, 213609, 356015, 1068045, 1559993, 4679979, 7799965, 17159923, 23399895, 51479769, 85799615, 257398845]

約数ペア:

[(1, 257398845), (3, 85799615), (5, 51479769), (11, 23399895), (15, 17159923), (33, 7799965), (55, 4679979), (165, 1559993), (241, 1068045), (723, 356015), (1205, 213609), (2651, 97095), (3615, 71203), (6473, 39765), (7953, 32365), (13255, 19419)]