64067500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{523}}^1$

素因数の和:561

約数の個数: 90

約数和(自身を含む): 163288356

約数和(自身を除く): 99220856

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 523, 625, 700, 875, 980, 1046, 1225, 1250, 1750, 2092, 2450, 2500, 2615, 3500, 3661, 4375, 4900, 5230, 6125, 7322, 8750, 10460, 12250, 13075, 14644, 17500, 18305, 24500, 25627, 26150, 30625, 36610, 51254, 52300, 61250, 65375, 73220, 91525, 102508, 122500, 128135, 130750, 183050, 256270, 261500, 326875, 366100, 457625, 512540, 640675, 653750, 915250, 1281350, 1307500, 1830500, 2288125, 2562700, 3203375, 4576250, 6406750, 9152500, 12813500, 16016875, 32033750, 64067500]

約数ペア:

[(1, 64067500), (2, 32033750), (4, 16016875), (5, 12813500), (7, 9152500), (10, 6406750), (14, 4576250), (20, 3203375), (25, 2562700), (28, 2288125), (35, 1830500), (49, 1307500), (50, 1281350), (70, 915250), (98, 653750), (100, 640675), (125, 512540), (140, 457625), (175, 366100), (196, 326875), (245, 261500), (250, 256270), (350, 183050), (490, 130750), (500, 128135), (523, 122500), (625, 102508), (700, 91525), (875, 73220), (980, 65375), (1046, 61250), (1225, 52300), (1250, 51254), (1750, 36610), (2092, 30625), (2450, 26150), (2500, 25627), (2615, 24500), (3500, 18305), (3661, 17500), (4375, 14644), (4900, 13075), (5230, 12250), (6125, 10460), (7322, 8750)]