15992000

素因数分解:

$2^6\times 5^3\times {\mathrm{1999}}^1$

素因数の和:2026

約数の個数: 56

約数和(自身を含む): 39624000

約数和(自身を除く): 23632000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 1999, 2000, 3998, 4000, 7996, 8000, 9995, 15992, 19990, 31984, 39980, 49975, 63968, 79960, 99950, 127936, 159920, 199900, 249875, 319840, 399800, 499750, 639680, 799600, 999500, 1599200, 1999000, 3198400, 3998000, 7996000, 15992000]

約数ペア:

[(1, 15992000), (2, 7996000), (4, 3998000), (5, 3198400), (8, 1999000), (10, 1599200), (16, 999500), (20, 799600), (25, 639680), (32, 499750), (40, 399800), (50, 319840), (64, 249875), (80, 199900), (100, 159920), (125, 127936), (160, 99950), (200, 79960), (250, 63968), (320, 49975), (400, 39980), (500, 31984), (800, 19990), (1000, 15992), (1600, 9995), (1999, 8000), (2000, 7996), (3998, 4000)]