2742255

素因数分解:

$3^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 5145504

約数和(自身を除く): 2403249

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 61, 81, 111, 135, 183, 185, 243, 305, 333, 405, 549, 555, 915, 999, 1215, 1647, 1665, 2257, 2745, 2997, 4941, 4995, 6771, 8235, 8991, 11285, 14823, 14985, 20313, 24705, 33855, 44955, 60939, 74115, 101565, 182817, 304695, 548451, 914085, 2742255]

約数ペア:

[(1, 2742255), (3, 914085), (5, 548451), (9, 304695), (15, 182817), (27, 101565), (37, 74115), (45, 60939), (61, 44955), (81, 33855), (111, 24705), (135, 20313), (183, 14985), (185, 14823), (243, 11285), (305, 8991), (333, 8235), (405, 6771), (549, 4995), (555, 4941), (915, 2997), (999, 2745), (1215, 2257), (1647, 1665)]