131279428

素因数分解:

$2^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{4889}}^1$

素因数の和:5044

約数の個数: 36

約数和(自身を含む): 269253180

約数和(自身を除く): 137973752

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 137, 196, 274, 548, 959, 1918, 3836, 4889, 6713, 9778, 13426, 19556, 26852, 34223, 68446, 136892, 239561, 479122, 669793, 958244, 1339586, 2679172, 4688551, 9377102, 18754204, 32819857, 65639714, 131279428]

約数ペア:

[(1, 131279428), (2, 65639714), (4, 32819857), (7, 18754204), (14, 9377102), (28, 4688551), (49, 2679172), (98, 1339586), (137, 958244), (196, 669793), (274, 479122), (548, 239561), (959, 136892), (1918, 68446), (3836, 34223), (4889, 26852), (6713, 19556), (9778, 13426)]