28872015

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1579}}^1$

素因数の和:1663

約数の個数: 32

約数和(自身を含む): 49144320

約数和(自身を除く): 20272305

約数列:

[1, 3, 5, 15, 23, 53, 69, 115, 159, 265, 345, 795, 1219, 1579, 3657, 4737, 6095, 7895, 18285, 23685, 36317, 83687, 108951, 181585, 251061, 418435, 544755, 1255305, 1924801, 5774403, 9624005, 28872015]

約数ペア:

[(1, 28872015), (3, 9624005), (5, 5774403), (15, 1924801), (23, 1255305), (53, 544755), (69, 418435), (115, 251061), (159, 181585), (265, 108951), (345, 83687), (795, 36317), (1219, 23685), (1579, 18285), (3657, 7895), (4737, 6095)]