20884413808

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{268189}}^1$

素因数の和:268385

約数の個数: 40

約数和(自身を含む): 42035027840

約数和(自身を除く): 21150614032

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 157, 248, 314, 496, 628, 1256, 2512, 4867, 9734, 19468, 38936, 77872, 268189, 536378, 1072756, 2145512, 4291024, 8313859, 16627718, 33255436, 42105673, 66510872, 84211346, 133021744, 168422692, 336845384, 673690768, 1305275863, 2610551726, 5221103452, 10442206904, 20884413808]

約数ペア:

[(1, 20884413808), (2, 10442206904), (4, 5221103452), (8, 2610551726), (16, 1305275863), (31, 673690768), (62, 336845384), (124, 168422692), (157, 133021744), (248, 84211346), (314, 66510872), (496, 42105673), (628, 33255436), (1256, 16627718), (2512, 8313859), (4867, 4291024), (9734, 2145512), (19468, 1072756), (38936, 536378), (77872, 268189)]