20735648

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{811}}^1$

素因数の和:885

約数の個数: 48

約数和(自身を含む): 44198784

約数和(自身を除く): 23463136

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 68, 94, 136, 188, 272, 376, 544, 752, 799, 811, 1504, 1598, 1622, 3196, 3244, 6392, 6488, 12784, 12976, 13787, 25568, 25952, 27574, 38117, 55148, 76234, 110296, 152468, 220592, 304936, 441184, 609872, 647989, 1219744, 1295978, 2591956, 5183912, 10367824, 20735648]

約数ペア:

[(1, 20735648), (2, 10367824), (4, 5183912), (8, 2591956), (16, 1295978), (17, 1219744), (32, 647989), (34, 609872), (47, 441184), (68, 304936), (94, 220592), (136, 152468), (188, 110296), (272, 76234), (376, 55148), (544, 38117), (752, 27574), (799, 25952), (811, 25568), (1504, 13787), (1598, 12976), (1622, 12784), (3196, 6488), (3244, 6392)]