15120812

素因数分解:

$2^2\times 7^3\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:235

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 16328788

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 107, 196, 206, 214, 343, 412, 428, 686, 721, 749, 1372, 1442, 1498, 2884, 2996, 5047, 5243, 10094, 10486, 11021, 20188, 20972, 22042, 35329, 36701, 44084, 70658, 73402, 77147, 141316, 146804, 154294, 308588, 540029, 1080058, 2160116, 3780203, 7560406, 15120812]

約数ペア:

[(1, 15120812), (2, 7560406), (4, 3780203), (7, 2160116), (14, 1080058), (28, 540029), (49, 308588), (98, 154294), (103, 146804), (107, 141316), (196, 77147), (206, 73402), (214, 70658), (343, 44084), (412, 36701), (428, 35329), (686, 22042), (721, 20972), (749, 20188), (1372, 11021), (1442, 10486), (1498, 10094), (2884, 5243), (2996, 5047)]