20878144

素因数分解:

$2^6\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1607}}^1$

素因数の和:1655

約数の個数: 56

約数和(自身を含む): 49011840

約数和(自身を除く): 28133696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 64, 112, 116, 203, 224, 232, 406, 448, 464, 812, 928, 1607, 1624, 1856, 3214, 3248, 6428, 6496, 11249, 12856, 12992, 22498, 25712, 44996, 46603, 51424, 89992, 93206, 102848, 179984, 186412, 326221, 359968, 372824, 652442, 719936, 745648, 1304884, 1491296, 2609768, 2982592, 5219536, 10439072, 20878144]

約数ペア:

[(1, 20878144), (2, 10439072), (4, 5219536), (7, 2982592), (8, 2609768), (14, 1491296), (16, 1304884), (28, 745648), (29, 719936), (32, 652442), (56, 372824), (58, 359968), (64, 326221), (112, 186412), (116, 179984), (203, 102848), (224, 93206), (232, 89992), (406, 51424), (448, 46603), (464, 44996), (812, 25712), (928, 22498), (1607, 12992), (1624, 12856), (1856, 11249), (3214, 6496), (3248, 6428)]