1243216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:203

約数の個数: 40

約数和(自身を含む): 2673440

約数和(自身を除く): 1430224

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 139, 172, 208, 278, 344, 556, 559, 688, 1112, 1118, 1807, 2224, 2236, 3614, 4472, 5977, 7228, 8944, 11954, 14456, 23908, 28912, 47816, 77701, 95632, 155402, 310804, 621608, 1243216]

約数ペア:

[(1, 1243216), (2, 621608), (4, 310804), (8, 155402), (13, 95632), (16, 77701), (26, 47816), (43, 28912), (52, 23908), (86, 14456), (104, 11954), (139, 8944), (172, 7228), (208, 5977), (278, 4472), (344, 3614), (556, 2236), (559, 2224), (688, 1807), (1112, 1118)]