19990496

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:363

約数の個数: 48

約数和(自身を含む): 41567904

約数和(自身を除く): 21577408

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 157, 173, 184, 314, 346, 368, 628, 692, 736, 1256, 1384, 2512, 2768, 3611, 3979, 5024, 5536, 7222, 7958, 14444, 15916, 27161, 28888, 31832, 54322, 57776, 63664, 108644, 115552, 127328, 217288, 434576, 624703, 869152, 1249406, 2498812, 4997624, 9995248, 19990496]

約数ペア:

[(1, 19990496), (2, 9995248), (4, 4997624), (8, 2498812), (16, 1249406), (23, 869152), (32, 624703), (46, 434576), (92, 217288), (157, 127328), (173, 115552), (184, 108644), (314, 63664), (346, 57776), (368, 54322), (628, 31832), (692, 28888), (736, 27161), (1256, 15916), (1384, 14444), (2512, 7958), (2768, 7222), (3611, 5536), (3979, 5024)]