28799856

素因数分解:

$2^4\times 3^2\times {\mathrm{199999}}^1$

素因数の和:200013

約数の個数: 30

約数和(自身を含む): 80600000

約数和(自身を除く): 51800144

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 199999, 399998, 599997, 799996, 1199994, 1599992, 1799991, 2399988, 3199984, 3599982, 4799976, 7199964, 9599952, 14399928, 28799856]

約数ペア:

[(1, 28799856), (2, 14399928), (3, 9599952), (4, 7199964), (6, 4799976), (8, 3599982), (9, 3199984), (12, 2399988), (16, 1799991), (18, 1599992), (24, 1199994), (36, 799996), (48, 599997), (72, 399998), (144, 199999)]