81338628

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3217}}^1$

素因数の和:3281

約数の個数: 72

約数和(自身を含む): 225980832

約数和(自身を除く): 144642204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 49, 84, 86, 98, 129, 147, 172, 196, 258, 294, 301, 516, 588, 602, 903, 1204, 1806, 2107, 3217, 3612, 4214, 6321, 6434, 8428, 9651, 12642, 12868, 19302, 22519, 25284, 38604, 45038, 67557, 90076, 135114, 138331, 157633, 270228, 276662, 315266, 414993, 472899, 553324, 630532, 829986, 945798, 968317, 1659972, 1891596, 1936634, 2904951, 3873268, 5809902, 6778219, 11619804, 13556438, 20334657, 27112876, 40669314, 81338628]

約数ペア:

[(1, 81338628), (2, 40669314), (3, 27112876), (4, 20334657), (6, 13556438), (7, 11619804), (12, 6778219), (14, 5809902), (21, 3873268), (28, 2904951), (42, 1936634), (43, 1891596), (49, 1659972), (84, 968317), (86, 945798), (98, 829986), (129, 630532), (147, 553324), (172, 472899), (196, 414993), (258, 315266), (294, 276662), (301, 270228), (516, 157633), (588, 138331), (602, 135114), (903, 90076), (1204, 67557), (1806, 45038), (2107, 38604), (3217, 25284), (3612, 22519), (4214, 19302), (6321, 12868), (6434, 12642), (8428, 9651)]