408025990

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{104891}}^1$

素因数の和:105287

約数の個数: 16

約数和(自身を含む): 736341840

約数和(自身を除く): 328315850

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 104891, 209782, 524455, 1048910, 40802599, 81605198, 204012995, 408025990]

約数ペア:

[(1, 408025990), (2, 204012995), (5, 81605198), (10, 40802599), (389, 1048910), (778, 524455), (1945, 209782), (3890, 104891)]