1231680784

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{974431}}^1$

素因数の和:974518

約数の個数: 20

約数和(自身を含む): 2416591360

約数和(自身を除く): 1184910576

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 974431, 1948862, 3897724, 7795448, 15590896, 76980049, 153960098, 307920196, 615840392, 1231680784]

約数ペア:

[(1, 1231680784), (2, 615840392), (4, 307920196), (8, 153960098), (16, 76980049), (79, 15590896), (158, 7795448), (316, 3897724), (632, 1948862), (1264, 974431)]