165999920

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{5563}}^1$

素因数の和:5949

約数の個数: 40

約数和(自身を含む): 387054096

約数和(自身を除く): 221054176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 746, 1492, 1865, 2984, 3730, 5563, 5968, 7460, 11126, 14920, 22252, 27815, 29840, 44504, 55630, 89008, 111260, 222520, 445040, 2074999, 4149998, 8299996, 10374995, 16599992, 20749990, 33199984, 41499980, 82999960, 165999920]

約数ペア:

[(1, 165999920), (2, 82999960), (4, 41499980), (5, 33199984), (8, 20749990), (10, 16599992), (16, 10374995), (20, 8299996), (40, 4149998), (80, 2074999), (373, 445040), (746, 222520), (1492, 111260), (1865, 89008), (2984, 55630), (3730, 44504), (5563, 29840), (5968, 27815), (7460, 22252), (11126, 14920)]