28052500

素因数分解:

$2^2\times 5^4\times 7^2\times {\mathrm{229}}^1$

素因数の和:267

約数の個数: 90

約数和(自身を含む): 71672370

約数和(自身を除く): 43619870

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 229, 245, 250, 350, 458, 490, 500, 625, 700, 875, 916, 980, 1145, 1225, 1250, 1603, 1750, 2290, 2450, 2500, 3206, 3500, 4375, 4580, 4900, 5725, 6125, 6412, 8015, 8750, 11221, 11450, 12250, 16030, 17500, 22442, 22900, 24500, 28625, 30625, 32060, 40075, 44884, 56105, 57250, 61250, 80150, 112210, 114500, 122500, 143125, 160300, 200375, 224420, 280525, 286250, 400750, 561050, 572500, 801500, 1001875, 1122100, 1402625, 2003750, 2805250, 4007500, 5610500, 7013125, 14026250, 28052500]

約数ペア:

[(1, 28052500), (2, 14026250), (4, 7013125), (5, 5610500), (7, 4007500), (10, 2805250), (14, 2003750), (20, 1402625), (25, 1122100), (28, 1001875), (35, 801500), (49, 572500), (50, 561050), (70, 400750), (98, 286250), (100, 280525), (125, 224420), (140, 200375), (175, 160300), (196, 143125), (229, 122500), (245, 114500), (250, 112210), (350, 80150), (458, 61250), (490, 57250), (500, 56105), (625, 44884), (700, 40075), (875, 32060), (916, 30625), (980, 28625), (1145, 24500), (1225, 22900), (1250, 22442), (1603, 17500), (1750, 16030), (2290, 12250), (2450, 11450), (2500, 11221), (3206, 8750), (3500, 8015), (4375, 6412), (4580, 6125), (4900, 5725)]