19727968

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1079

約数の個数: 48

約数和(自身を含む): 42759360

約数和(自身を除く): 23031392

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 94, 104, 188, 208, 376, 416, 611, 752, 1009, 1222, 1504, 2018, 2444, 4036, 4888, 8072, 9776, 13117, 16144, 19552, 26234, 32288, 47423, 52468, 94846, 104936, 189692, 209872, 379384, 419744, 616499, 758768, 1232998, 1517536, 2465996, 4931992, 9863984, 19727968]

約数ペア:

[(1, 19727968), (2, 9863984), (4, 4931992), (8, 2465996), (13, 1517536), (16, 1232998), (26, 758768), (32, 616499), (47, 419744), (52, 379384), (94, 209872), (104, 189692), (188, 104936), (208, 94846), (376, 52468), (416, 47423), (611, 32288), (752, 26234), (1009, 19552), (1222, 16144), (1504, 13117), (2018, 9776), (2444, 8072), (4036, 4888)]