28368945

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 54093312

約数和(自身を除く): 25724367

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 223, 257, 495, 669, 771, 1115, 1285, 2007, 2313, 2453, 2827, 3345, 3855, 7359, 8481, 10035, 11565, 12265, 14135, 22077, 25443, 36795, 42405, 57311, 110385, 127215, 171933, 286555, 515799, 630421, 859665, 1891263, 2578995, 3152105, 5673789, 9456315, 28368945]

約数ペア:

[(1, 28368945), (3, 9456315), (5, 5673789), (9, 3152105), (11, 2578995), (15, 1891263), (33, 859665), (45, 630421), (55, 515799), (99, 286555), (165, 171933), (223, 127215), (257, 110385), (495, 57311), (669, 42405), (771, 36795), (1115, 25443), (1285, 22077), (2007, 14135), (2313, 12265), (2453, 11565), (2827, 10035), (3345, 8481), (3855, 7359)]