81374132

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{389}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 169128960

約数和(自身を除く): 87754828

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 241, 389, 434, 482, 778, 868, 964, 1556, 1687, 2723, 3374, 5446, 6748, 7471, 10892, 12059, 14942, 24118, 29884, 48236, 52297, 84413, 93749, 104594, 168826, 187498, 209188, 337652, 374996, 656243, 1312486, 2624972, 2906219, 5812438, 11624876, 20343533, 40687066, 81374132]

約数ペア:

[(1, 81374132), (2, 40687066), (4, 20343533), (7, 11624876), (14, 5812438), (28, 2906219), (31, 2624972), (62, 1312486), (124, 656243), (217, 374996), (241, 337652), (389, 209188), (434, 187498), (482, 168826), (778, 104594), (868, 93749), (964, 84413), (1556, 52297), (1687, 48236), (2723, 29884), (3374, 24118), (5446, 14942), (6748, 12059), (7471, 10892)]