78816500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{3217}}^1$

素因数の和:3250

約数の個数: 72

約数和(自身を含む): 200301192

約数和(自身を除く): 121484692

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, 700, 875, 980, 1225, 1750, 2450, 3217, 3500, 4900, 6125, 6434, 12250, 12868, 16085, 22519, 24500, 32170, 45038, 64340, 80425, 90076, 112595, 157633, 160850, 225190, 315266, 321700, 402125, 450380, 562975, 630532, 788165, 804250, 1125950, 1576330, 1608500, 2251900, 2814875, 3152660, 3940825, 5629750, 7881650, 11259500, 15763300, 19704125, 39408250, 78816500]

約数ペア:

[(1, 78816500), (2, 39408250), (4, 19704125), (5, 15763300), (7, 11259500), (10, 7881650), (14, 5629750), (20, 3940825), (25, 3152660), (28, 2814875), (35, 2251900), (49, 1608500), (50, 1576330), (70, 1125950), (98, 804250), (100, 788165), (125, 630532), (140, 562975), (175, 450380), (196, 402125), (245, 321700), (250, 315266), (350, 225190), (490, 160850), (500, 157633), (700, 112595), (875, 90076), (980, 80425), (1225, 64340), (1750, 45038), (2450, 32170), (3217, 24500), (3500, 22519), (4900, 16085), (6125, 12868), (6434, 12250)]