20806656

素因数分解:

$2^{10}\times 3^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:557

約数の個数: 88

約数和(自身を含む): 59837904

約数和(自身を除く): 39031248

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 512, 521, 624, 768, 832, 1024, 1042, 1248, 1536, 1563, 1664, 2084, 2496, 3072, 3126, 3328, 4168, 4992, 6252, 6656, 6773, 8336, 9984, 12504, 13312, 13546, 16672, 19968, 20319, 25008, 27092, 33344, 39936, 40638, 50016, 54184, 66688, 81276, 100032, 108368, 133376, 162552, 200064, 216736, 266752, 325104, 400128, 433472, 533504, 650208, 800256, 866944, 1300416, 1600512, 1733888, 2600832, 3467776, 5201664, 6935552, 10403328, 20806656]

約数ペア:

[(1, 20806656), (2, 10403328), (3, 6935552), (4, 5201664), (6, 3467776), (8, 2600832), (12, 1733888), (13, 1600512), (16, 1300416), (24, 866944), (26, 800256), (32, 650208), (39, 533504), (48, 433472), (52, 400128), (64, 325104), (78, 266752), (96, 216736), (104, 200064), (128, 162552), (156, 133376), (192, 108368), (208, 100032), (256, 81276), (312, 66688), (384, 54184), (416, 50016), (512, 40638), (521, 39936), (624, 33344), (768, 27092), (832, 25008), (1024, 20319), (1042, 19968), (1248, 16672), (1536, 13546), (1563, 13312), (1664, 12504), (2084, 9984), (2496, 8336), (3072, 6773), (3126, 6656), (3328, 6252), (4168, 4992)]