637213070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{257981}}^1$

素因数の和:258020

約数の個数: 32

約数和(自身を含む): 1300229280

約数和(自身を除く): 663016210

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 257981, 515962, 1289905, 2579810, 3353753, 4901639, 6707506, 9803278, 16768765, 24508195, 33537530, 49016390, 63721307, 127442614, 318606535, 637213070]

約数ペア:

[(1, 637213070), (2, 318606535), (5, 127442614), (10, 63721307), (13, 49016390), (19, 33537530), (26, 24508195), (38, 16768765), (65, 9803278), (95, 6707506), (130, 4901639), (190, 3353753), (247, 2579810), (494, 1289905), (1235, 515962), (2470, 257981)]