127864784

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{131009}}^1$

素因数の和:131078

約数の個数: 20

約数和(自身を含む): 251801220

約数和(自身を除く): 123936436

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 131009, 262018, 524036, 1048072, 2096144, 7991549, 15983098, 31966196, 63932392, 127864784]

約数ペア:

[(1, 127864784), (2, 63932392), (4, 31966196), (8, 15983098), (16, 7991549), (61, 2096144), (122, 1048072), (244, 524036), (488, 262018), (976, 131009)]