187360420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{720617}}^1$

素因数の和:720639

約数の個数: 24

約数和(自身を含む): 423723384

約数和(自身を除く): 236362964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 720617, 1441234, 2882468, 3603085, 7206170, 9368021, 14412340, 18736042, 37472084, 46840105, 93680210, 187360420]

約数ペア:

[(1, 187360420), (2, 93680210), (4, 46840105), (5, 37472084), (10, 18736042), (13, 14412340), (20, 9368021), (26, 7206170), (52, 3603085), (65, 2882468), (130, 1441234), (260, 720617)]