20050804820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{242101}}^1$

素因数の和:242252

約数の個数: 48

約数和(自身を含む): 43560928656

約数和(自身を除く): 23510123836

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 202, 205, 404, 410, 505, 820, 1010, 2020, 4141, 8282, 16564, 20705, 41410, 82820, 242101, 484202, 968404, 1210505, 2421010, 4842020, 9926141, 19852282, 24452201, 39704564, 48904402, 49630705, 97808804, 99261410, 122261005, 198522820, 244522010, 489044020, 1002540241, 2005080482, 4010160964, 5012701205, 10025402410, 20050804820]

約数ペア:

[(1, 20050804820), (2, 10025402410), (4, 5012701205), (5, 4010160964), (10, 2005080482), (20, 1002540241), (41, 489044020), (82, 244522010), (101, 198522820), (164, 122261005), (202, 99261410), (205, 97808804), (404, 49630705), (410, 48904402), (505, 39704564), (820, 24452201), (1010, 19852282), (2020, 9926141), (4141, 4842020), (8282, 2421010), (16564, 1210505), (20705, 968404), (41410, 484202), (82820, 242101)]