28956070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{20249}}^1$

素因数の和:20280

約数の個数: 32

約数和(自身を含む): 61236000

約数和(自身を除く): 32279930

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 20249, 40498, 101245, 202490, 222739, 263237, 445478, 526474, 1113695, 1316185, 2227390, 2632370, 2895607, 5791214, 14478035, 28956070]

約数ペア:

[(1, 28956070), (2, 14478035), (5, 5791214), (10, 2895607), (11, 2632370), (13, 2227390), (22, 1316185), (26, 1113695), (55, 526474), (65, 445478), (110, 263237), (130, 222739), (143, 202490), (286, 101245), (715, 40498), (1430, 20249)]