16165840

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{509}}^1$

素因数の和:919

約数の個数: 40

約数和(自身を含む): 37754280

約数和(自身を除く): 21588440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 509, 794, 1018, 1588, 1985, 2036, 2545, 3176, 3970, 4072, 5090, 6352, 7940, 8144, 10180, 15880, 20360, 31760, 40720, 202073, 404146, 808292, 1010365, 1616584, 2020730, 3233168, 4041460, 8082920, 16165840]

約数ペア:

[(1, 16165840), (2, 8082920), (4, 4041460), (5, 3233168), (8, 2020730), (10, 1616584), (16, 1010365), (20, 808292), (40, 404146), (80, 202073), (397, 40720), (509, 31760), (794, 20360), (1018, 15880), (1588, 10180), (1985, 8144), (2036, 7940), (2545, 6352), (3176, 5090), (3970, 4072)]