1996540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1097}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 5164992

約数和(自身を除く): 3168452

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1097, 1820, 2194, 4388, 5485, 7679, 10970, 14261, 15358, 21940, 28522, 30716, 38395, 57044, 71305, 76790, 99827, 142610, 153580, 199654, 285220, 399308, 499135, 998270, 1996540]

約数ペア:

[(1, 1996540), (2, 998270), (4, 499135), (5, 399308), (7, 285220), (10, 199654), (13, 153580), (14, 142610), (20, 99827), (26, 76790), (28, 71305), (35, 57044), (52, 38395), (65, 30716), (70, 28522), (91, 21940), (130, 15358), (140, 14261), (182, 10970), (260, 7679), (364, 5485), (455, 4388), (910, 2194), (1097, 1820)]