25720156

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{739}}^1$

素因数の和:874

約数の個数: 48

約数和(自身を含む): 56689920

約数和(自身を除く): 30969764

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 113, 154, 226, 308, 452, 739, 791, 1243, 1478, 1582, 2486, 2956, 3164, 4972, 5173, 8129, 8701, 10346, 16258, 17402, 20692, 32516, 34804, 56903, 83507, 113806, 167014, 227612, 334028, 584549, 918577, 1169098, 1837154, 2338196, 3674308, 6430039, 12860078, 25720156]

約数ペア:

[(1, 25720156), (2, 12860078), (4, 6430039), (7, 3674308), (11, 2338196), (14, 1837154), (22, 1169098), (28, 918577), (44, 584549), (77, 334028), (113, 227612), (154, 167014), (226, 113806), (308, 83507), (452, 56903), (739, 34804), (791, 32516), (1243, 20692), (1478, 17402), (1582, 16258), (2486, 10346), (2956, 8701), (3164, 8129), (4972, 5173)]