489595540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{13297}}^1$

素因数の和:13576

約数の個数: 48

約数和(自身を含む): 1179585792

約数和(自身を除く): 689990252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 526, 1052, 1315, 1841, 2630, 3682, 5260, 7364, 9205, 13297, 18410, 26594, 36820, 53188, 66485, 93079, 132970, 186158, 265940, 372316, 465395, 930790, 1861580, 3497111, 6994222, 13988444, 17485555, 24479777, 34971110, 48959554, 69942220, 97919108, 122398885, 244797770, 489595540]

約数ペア:

[(1, 489595540), (2, 244797770), (4, 122398885), (5, 97919108), (7, 69942220), (10, 48959554), (14, 34971110), (20, 24479777), (28, 17485555), (35, 13988444), (70, 6994222), (140, 3497111), (263, 1861580), (526, 930790), (1052, 465395), (1315, 372316), (1841, 265940), (2630, 186158), (3682, 132970), (5260, 93079), (7364, 66485), (9205, 53188), (13297, 36820), (18410, 26594)]