278589892

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2131}}^1$

素因数の和:2201

約数の個数: 72

約数和(自身を含む): 612480960

約数和(自身を除く): 333891068

約数列:

[1, 2, 4, 7, 14, 23, 28, 29, 46, 49, 58, 92, 98, 116, 161, 196, 203, 322, 406, 644, 667, 812, 1127, 1334, 1421, 2131, 2254, 2668, 2842, 4262, 4508, 4669, 5684, 8524, 9338, 14917, 18676, 29834, 32683, 49013, 59668, 61799, 65366, 98026, 104419, 123598, 130732, 196052, 208838, 247196, 343091, 417676, 432593, 686182, 865186, 1372364, 1421377, 1730372, 2401637, 2842754, 3028151, 4803274, 5685508, 6056302, 9606548, 9949639, 12112604, 19899278, 39798556, 69647473, 139294946, 278589892]

約数ペア:

[(1, 278589892), (2, 139294946), (4, 69647473), (7, 39798556), (14, 19899278), (23, 12112604), (28, 9949639), (29, 9606548), (46, 6056302), (49, 5685508), (58, 4803274), (92, 3028151), (98, 2842754), (116, 2401637), (161, 1730372), (196, 1421377), (203, 1372364), (322, 865186), (406, 686182), (644, 432593), (667, 417676), (812, 343091), (1127, 247196), (1334, 208838), (1421, 196052), (2131, 130732), (2254, 123598), (2668, 104419), (2842, 98026), (4262, 65366), (4508, 61799), (4669, 59668), (5684, 49013), (8524, 32683), (9338, 29834), (14917, 18676)]