421722500

素因数分解:

$2^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{3923}}^1$

素因数の和:3990

約数の個数: 60

約数和(自身を含む): 943910352

約数和(自身を除く): 522187852

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 625, 860, 1075, 1250, 2150, 2500, 3923, 4300, 5375, 7846, 10750, 15692, 19615, 21500, 26875, 39230, 53750, 78460, 98075, 107500, 168689, 196150, 337378, 392300, 490375, 674756, 843445, 980750, 1686890, 1961500, 2451875, 3373780, 4217225, 4903750, 8434450, 9807500, 16868900, 21086125, 42172250, 84344500, 105430625, 210861250, 421722500]

約数ペア:

[(1, 421722500), (2, 210861250), (4, 105430625), (5, 84344500), (10, 42172250), (20, 21086125), (25, 16868900), (43, 9807500), (50, 8434450), (86, 4903750), (100, 4217225), (125, 3373780), (172, 2451875), (215, 1961500), (250, 1686890), (430, 980750), (500, 843445), (625, 674756), (860, 490375), (1075, 392300), (1250, 337378), (2150, 196150), (2500, 168689), (3923, 107500), (4300, 98075), (5375, 78460), (7846, 53750), (10750, 39230), (15692, 26875), (19615, 21500)]