81279156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1901}}^1$

素因数の和:2424

約数の個数: 48

約数和(自身を含む): 217284480

約数和(自身を除く): 136005324

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 509, 1018, 1527, 1901, 2036, 3054, 3563, 3802, 5703, 6108, 7126, 7604, 10689, 11406, 13307, 14252, 21378, 22812, 26614, 39921, 42756, 53228, 79842, 159684, 967609, 1935218, 2902827, 3870436, 5805654, 6773263, 11611308, 13546526, 20319789, 27093052, 40639578, 81279156]

約数ペア:

[(1, 81279156), (2, 40639578), (3, 27093052), (4, 20319789), (6, 13546526), (7, 11611308), (12, 6773263), (14, 5805654), (21, 3870436), (28, 2902827), (42, 1935218), (84, 967609), (509, 159684), (1018, 79842), (1527, 53228), (1901, 42756), (2036, 39921), (3054, 26614), (3563, 22812), (3802, 21378), (5703, 14252), (6108, 13307), (7126, 11406), (7604, 10689)]