289348540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{1949}}^1$

素因数の和:2542

約数の個数: 48

約数和(自身を含む): 655855200

約数和(自身を除く): 366506660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 571, 1142, 1949, 2284, 2855, 3898, 5710, 7423, 7796, 9745, 11420, 14846, 19490, 25337, 29692, 37115, 38980, 50674, 74230, 101348, 126685, 148460, 253370, 506740, 1112879, 2225758, 4451516, 5564395, 11128790, 14467427, 22257580, 28934854, 57869708, 72337135, 144674270, 289348540]

約数ペア:

[(1, 289348540), (2, 144674270), (4, 72337135), (5, 57869708), (10, 28934854), (13, 22257580), (20, 14467427), (26, 11128790), (52, 5564395), (65, 4451516), (130, 2225758), (260, 1112879), (571, 506740), (1142, 253370), (1949, 148460), (2284, 126685), (2855, 101348), (3898, 74230), (5710, 50674), (7423, 38980), (7796, 37115), (9745, 29692), (11420, 25337), (14846, 19490)]