15999000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{5333}}^1$

素因数の和:5357

約数の個数: 64

約数和(自身を含む): 49926240

約数和(自身を除く): 33927240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 125, 150, 200, 250, 300, 375, 500, 600, 750, 1000, 1500, 3000, 5333, 10666, 15999, 21332, 26665, 31998, 42664, 53330, 63996, 79995, 106660, 127992, 133325, 159990, 213320, 266650, 319980, 399975, 533300, 639960, 666625, 799950, 1066600, 1333250, 1599900, 1999875, 2666500, 3199800, 3999750, 5333000, 7999500, 15999000]

約数ペア:

[(1, 15999000), (2, 7999500), (3, 5333000), (4, 3999750), (5, 3199800), (6, 2666500), (8, 1999875), (10, 1599900), (12, 1333250), (15, 1066600), (20, 799950), (24, 666625), (25, 639960), (30, 533300), (40, 399975), (50, 319980), (60, 266650), (75, 213320), (100, 159990), (120, 133325), (125, 127992), (150, 106660), (200, 79995), (250, 63996), (300, 53330), (375, 42664), (500, 31998), (600, 26665), (750, 21332), (1000, 15999), (1500, 10666), (3000, 5333)]