1285286768

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{248701}}^1$

素因数の和:248745

約数の個数: 40

約数和(自身を含む): 2775514320

約数和(自身を除く): 1490227552

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 5168, 248701, 497402, 994804, 1989608, 3979216, 4227917, 4725319, 8455834, 9450638, 16911668, 18901276, 33823336, 37802552, 67646672, 75605104, 80330423, 160660846, 321321692, 642643384, 1285286768]

約数ペア:

[(1, 1285286768), (2, 642643384), (4, 321321692), (8, 160660846), (16, 80330423), (17, 75605104), (19, 67646672), (34, 37802552), (38, 33823336), (68, 18901276), (76, 16911668), (136, 9450638), (152, 8455834), (272, 4725319), (304, 4227917), (323, 3979216), (646, 1989608), (1292, 994804), (2584, 497402), (5168, 248701)]