1320992000

素因数分解:

$2^8\times 5^3\times {\mathrm{41281}}^1$

素因数の和:41312

約数の個数: 72

約数和(自身を含む): 3290835912

約数和(自身を除く): 1969843912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 3200, 4000, 6400, 8000, 16000, 32000, 41281, 82562, 165124, 206405, 330248, 412810, 660496, 825620, 1032025, 1320992, 1651240, 2064050, 2641984, 3302480, 4128100, 5160125, 5283968, 6604960, 8256200, 10320250, 10567936, 13209920, 16512400, 20640500, 26419840, 33024800, 41281000, 52839680, 66049600, 82562000, 132099200, 165124000, 264198400, 330248000, 660496000, 1320992000]

約数ペア:

[(1, 1320992000), (2, 660496000), (4, 330248000), (5, 264198400), (8, 165124000), (10, 132099200), (16, 82562000), (20, 66049600), (25, 52839680), (32, 41281000), (40, 33024800), (50, 26419840), (64, 20640500), (80, 16512400), (100, 13209920), (125, 10567936), (128, 10320250), (160, 8256200), (200, 6604960), (250, 5283968), (256, 5160125), (320, 4128100), (400, 3302480), (500, 2641984), (640, 2064050), (800, 1651240), (1000, 1320992), (1280, 1032025), (1600, 825620), (2000, 660496), (3200, 412810), (4000, 330248), (6400, 206405), (8000, 165124), (16000, 82562), (32000, 41281)]