81818436

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{347}}^1\times {\mathrm{401}}^1$

素因数の和:769

約数の個数: 72

約数和(自身を含む): 223274016

約数和(自身を除く): 141455580

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 347, 401, 588, 694, 802, 1041, 1203, 1388, 1604, 2082, 2406, 2429, 2807, 4164, 4812, 4858, 5614, 7287, 8421, 9716, 11228, 14574, 16842, 17003, 19649, 29148, 33684, 34006, 39298, 51009, 58947, 68012, 78596, 102018, 117894, 139147, 204036, 235788, 278294, 417441, 556588, 834882, 974029, 1669764, 1948058, 2922087, 3896116, 5844174, 6818203, 11688348, 13636406, 20454609, 27272812, 40909218, 81818436]

約数ペア:

[(1, 81818436), (2, 40909218), (3, 27272812), (4, 20454609), (6, 13636406), (7, 11688348), (12, 6818203), (14, 5844174), (21, 3896116), (28, 2922087), (42, 1948058), (49, 1669764), (84, 974029), (98, 834882), (147, 556588), (196, 417441), (294, 278294), (347, 235788), (401, 204036), (588, 139147), (694, 117894), (802, 102018), (1041, 78596), (1203, 68012), (1388, 58947), (1604, 51009), (2082, 39298), (2406, 34006), (2429, 33684), (2807, 29148), (4164, 19649), (4812, 17003), (4858, 16842), (5614, 14574), (7287, 11228), (8421, 9716)]