20161540420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{746171}}^1$

素因数の和:746380

約数の個数: 48

約数和(自身を含む): 48638475648

約数和(自身を除く): 28476935228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 965, 1351, 1930, 2702, 3860, 5404, 6755, 13510, 27020, 746171, 1492342, 2984684, 3730855, 5223197, 7461710, 10446394, 14923420, 20892788, 26115985, 52231970, 104463940, 144011003, 288022006, 576044012, 720055015, 1008077021, 1440110030, 2016154042, 2880220060, 4032308084, 5040385105, 10080770210, 20161540420]

約数ペア:

[(1, 20161540420), (2, 10080770210), (4, 5040385105), (5, 4032308084), (7, 2880220060), (10, 2016154042), (14, 1440110030), (20, 1008077021), (28, 720055015), (35, 576044012), (70, 288022006), (140, 144011003), (193, 104463940), (386, 52231970), (772, 26115985), (965, 20892788), (1351, 14923420), (1930, 10446394), (2702, 7461710), (3860, 5223197), (5404, 3730855), (6755, 2984684), (13510, 1492342), (27020, 746171)]