28278630

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1409}}^1$

素因数の和:1645

約数の個数: 48

約数和(自身を含む): 73906560

約数和(自身を除く): 45627930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 223, 446, 669, 1115, 1338, 1409, 2007, 2230, 2818, 3345, 4014, 4227, 6690, 7045, 8454, 10035, 12681, 14090, 20070, 21135, 25362, 42270, 63405, 126810, 314207, 628414, 942621, 1571035, 1885242, 2827863, 3142070, 4713105, 5655726, 9426210, 14139315, 28278630]

約数ペア:

[(1, 28278630), (2, 14139315), (3, 9426210), (5, 5655726), (6, 4713105), (9, 3142070), (10, 2827863), (15, 1885242), (18, 1571035), (30, 942621), (45, 628414), (90, 314207), (223, 126810), (446, 63405), (669, 42270), (1115, 25362), (1338, 21135), (1409, 20070), (2007, 14090), (2230, 12681), (2818, 10035), (3345, 8454), (4014, 7045), (4227, 6690)]