291244990

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{29389}}^1$

素因数の和:30387

約数の個数: 16

約数和(自身を含む): 524787840

約数和(自身を除く): 233542850

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 9910, 29389, 58778, 146945, 293890, 29124499, 58248998, 145622495, 291244990]

約数ペア:

[(1, 291244990), (2, 145622495), (5, 58248998), (10, 29124499), (991, 293890), (1982, 146945), (4955, 58778), (9910, 29389)]