20805586780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2503}}^1\times {\mathrm{37783}}^1$

素因数の和:40306

約数の個数: 48

約数和(自身を含む): 47684012544

約数和(自身を除く): 26878425764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 2503, 5006, 10012, 12515, 25030, 27533, 37783, 50060, 55066, 75566, 110132, 137665, 151132, 188915, 275330, 377830, 415613, 550660, 755660, 831226, 1662452, 2078065, 4156130, 8312260, 94570849, 189141698, 378283396, 472854245, 945708490, 1040279339, 1891416980, 2080558678, 4161117356, 5201396695, 10402793390, 20805586780]

約数ペア:

[(1, 20805586780), (2, 10402793390), (4, 5201396695), (5, 4161117356), (10, 2080558678), (11, 1891416980), (20, 1040279339), (22, 945708490), (44, 472854245), (55, 378283396), (110, 189141698), (220, 94570849), (2503, 8312260), (5006, 4156130), (10012, 2078065), (12515, 1662452), (25030, 831226), (27533, 755660), (37783, 550660), (50060, 415613), (55066, 377830), (75566, 275330), (110132, 188915), (137665, 151132)]