42017500

素因数分解:

$2^2\times 5^4\times 7^5$

素因数の和:59

約数の個数: 90

約数和(自身を含む): 107196936

約数和(自身を除く): 65179436

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, 343, 350, 490, 500, 625, 686, 700, 875, 980, 1225, 1250, 1372, 1715, 1750, 2401, 2450, 2500, 3430, 3500, 4375, 4802, 4900, 6125, 6860, 8575, 8750, 9604, 12005, 12250, 16807, 17150, 17500, 24010, 24500, 30625, 33614, 34300, 42875, 48020, 60025, 61250, 67228, 84035, 85750, 120050, 122500, 168070, 171500, 214375, 240100, 300125, 336140, 420175, 428750, 600250, 840350, 857500, 1200500, 1500625, 1680700, 2100875, 3001250, 4201750, 6002500, 8403500, 10504375, 21008750, 42017500]

約数ペア:

[(1, 42017500), (2, 21008750), (4, 10504375), (5, 8403500), (7, 6002500), (10, 4201750), (14, 3001250), (20, 2100875), (25, 1680700), (28, 1500625), (35, 1200500), (49, 857500), (50, 840350), (70, 600250), (98, 428750), (100, 420175), (125, 336140), (140, 300125), (175, 240100), (196, 214375), (245, 171500), (250, 168070), (343, 122500), (350, 120050), (490, 85750), (500, 84035), (625, 67228), (686, 61250), (700, 60025), (875, 48020), (980, 42875), (1225, 34300), (1250, 33614), (1372, 30625), (1715, 24500), (1750, 24010), (2401, 17500), (2450, 17150), (2500, 16807), (3430, 12250), (3500, 12005), (4375, 9604), (4802, 8750), (4900, 8575), (6125, 6860)]