13672280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7949}}^1$

素因数の和:8003

約数の個数: 32

約数和(自身を含む): 31482000

約数和(自身を除く): 17809720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7949, 15898, 31796, 39745, 63592, 79490, 158980, 317960, 341807, 683614, 1367228, 1709035, 2734456, 3418070, 6836140, 13672280]

約数ペア:

[(1, 13672280), (2, 6836140), (4, 3418070), (5, 2734456), (8, 1709035), (10, 1367228), (20, 683614), (40, 341807), (43, 317960), (86, 158980), (172, 79490), (215, 63592), (344, 39745), (430, 31796), (860, 15898), (1720, 7949)]