664332020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{73651}}^1$

素因数の和:73712

約数の個数: 48

約数和(自身を含む): 1559065536

約数和(自身を除く): 894733516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 73651, 147302, 294604, 368255, 736510, 810161, 1473020, 1620322, 3019691, 3240644, 4050805, 6039382, 8101610, 12078764, 15098455, 16203220, 30196910, 33216601, 60393820, 66433202, 132866404, 166083005, 332166010, 664332020]

約数ペア:

[(1, 664332020), (2, 332166010), (4, 166083005), (5, 132866404), (10, 66433202), (11, 60393820), (20, 33216601), (22, 30196910), (41, 16203220), (44, 15098455), (55, 12078764), (82, 8101610), (110, 6039382), (164, 4050805), (205, 3240644), (220, 3019691), (410, 1620322), (451, 1473020), (820, 810161), (902, 736510), (1804, 368255), (2255, 294604), (4510, 147302), (9020, 73651)]