21392000

素因数分解:

$2^7\times 5^3\times 7^1\times {\mathrm{191}}^1$

素因数の和:227

約数の個数: 128

約数和(自身を含む): 61102080

約数和(自身を除く): 39710080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 191, 200, 224, 250, 280, 320, 350, 382, 400, 448, 500, 560, 640, 700, 764, 800, 875, 896, 955, 1000, 1120, 1337, 1400, 1528, 1600, 1750, 1910, 2000, 2240, 2674, 2800, 3056, 3200, 3500, 3820, 4000, 4480, 4775, 5348, 5600, 6112, 6685, 7000, 7640, 8000, 9550, 10696, 11200, 12224, 13370, 14000, 15280, 16000, 19100, 21392, 22400, 23875, 24448, 26740, 28000, 30560, 33425, 38200, 42784, 47750, 53480, 56000, 61120, 66850, 76400, 85568, 95500, 106960, 112000, 122240, 133700, 152800, 167125, 171136, 191000, 213920, 267400, 305600, 334250, 382000, 427840, 534800, 611200, 668500, 764000, 855680, 1069600, 1337000, 1528000, 2139200, 2674000, 3056000, 4278400, 5348000, 10696000, 21392000]

約数ペア:

[(1, 21392000), (2, 10696000), (4, 5348000), (5, 4278400), (7, 3056000), (8, 2674000), (10, 2139200), (14, 1528000), (16, 1337000), (20, 1069600), (25, 855680), (28, 764000), (32, 668500), (35, 611200), (40, 534800), (50, 427840), (56, 382000), (64, 334250), (70, 305600), (80, 267400), (100, 213920), (112, 191000), (125, 171136), (128, 167125), (140, 152800), (160, 133700), (175, 122240), (191, 112000), (200, 106960), (224, 95500), (250, 85568), (280, 76400), (320, 66850), (350, 61120), (382, 56000), (400, 53480), (448, 47750), (500, 42784), (560, 38200), (640, 33425), (700, 30560), (764, 28000), (800, 26740), (875, 24448), (896, 23875), (955, 22400), (1000, 21392), (1120, 19100), (1337, 16000), (1400, 15280), (1528, 14000), (1600, 13370), (1750, 12224), (1910, 11200), (2000, 10696), (2240, 9550), (2674, 8000), (2800, 7640), (3056, 7000), (3200, 6685), (3500, 6112), (3820, 5600), (4000, 5348), (4480, 4775)]