13615220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7649}}^1$

素因数の和:7747

約数の個数: 24

約数和(自身を含む): 28917000

約数和(自身を除く): 15301780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 7649, 15298, 30596, 38245, 76490, 152980, 680761, 1361522, 2723044, 3403805, 6807610, 13615220]

約数ペア:

[(1, 13615220), (2, 6807610), (4, 3403805), (5, 2723044), (10, 1361522), (20, 680761), (89, 152980), (178, 76490), (356, 38245), (445, 30596), (890, 15298), (1780, 7649)]