81774284

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{127}}^1\times {\mathrm{557}}^1$

素因数の和:722

約数の個数: 36

約数和(自身を含む): 153490176

約数和(自身を除く): 71715892

約数列:

[1, 2, 4, 17, 34, 68, 127, 254, 289, 508, 557, 578, 1114, 1156, 2159, 2228, 4318, 8636, 9469, 18938, 36703, 37876, 70739, 73406, 141478, 146812, 160973, 282956, 321946, 643892, 1202563, 2405126, 4810252, 20443571, 40887142, 81774284]

約数ペア:

[(1, 81774284), (2, 40887142), (4, 20443571), (17, 4810252), (34, 2405126), (68, 1202563), (127, 643892), (254, 321946), (289, 282956), (508, 160973), (557, 146812), (578, 141478), (1114, 73406), (1156, 70739), (2159, 37876), (2228, 36703), (4318, 18938), (8636, 9469)]