20310500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{829}}^1$

素因数の和:862

約数の個数: 72

約数和(自身を含む): 51662520

約数和(自身を除く): 31352020

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, 829, 875, 980, 1225, 1658, 1750, 2450, 3316, 3500, 4145, 4900, 5803, 6125, 8290, 11606, 12250, 16580, 20725, 23212, 24500, 29015, 40621, 41450, 58030, 81242, 82900, 103625, 116060, 145075, 162484, 203105, 207250, 290150, 406210, 414500, 580300, 725375, 812420, 1015525, 1450750, 2031050, 2901500, 4062100, 5077625, 10155250, 20310500]

約数ペア:

[(1, 20310500), (2, 10155250), (4, 5077625), (5, 4062100), (7, 2901500), (10, 2031050), (14, 1450750), (20, 1015525), (25, 812420), (28, 725375), (35, 580300), (49, 414500), (50, 406210), (70, 290150), (98, 207250), (100, 203105), (125, 162484), (140, 145075), (175, 116060), (196, 103625), (245, 82900), (250, 81242), (350, 58030), (490, 41450), (500, 40621), (700, 29015), (829, 24500), (875, 23212), (980, 20725), (1225, 16580), (1658, 12250), (1750, 11606), (2450, 8290), (3316, 6125), (3500, 5803), (4145, 4900)]