128395386

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{977}}^1$

素因数の和:1148

約数の個数: 72

約数和(自身を含む): 326114100

約数和(自身を除く): 197718714

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 149, 294, 298, 441, 447, 882, 894, 977, 1043, 1341, 1954, 2086, 2682, 2931, 3129, 5862, 6258, 6839, 7301, 8793, 9387, 13678, 14602, 17586, 18774, 20517, 21903, 41034, 43806, 47873, 61551, 65709, 95746, 123102, 131418, 143619, 145573, 287238, 291146, 430857, 436719, 861714, 873438, 1019011, 1310157, 2038022, 2620314, 3057033, 6114066, 7133077, 9171099, 14266154, 18342198, 21399231, 42798462, 64197693, 128395386]

約数ペア:

[(1, 128395386), (2, 64197693), (3, 42798462), (6, 21399231), (7, 18342198), (9, 14266154), (14, 9171099), (18, 7133077), (21, 6114066), (42, 3057033), (49, 2620314), (63, 2038022), (98, 1310157), (126, 1019011), (147, 873438), (149, 861714), (294, 436719), (298, 430857), (441, 291146), (447, 287238), (882, 145573), (894, 143619), (977, 131418), (1043, 123102), (1341, 95746), (1954, 65709), (2086, 61551), (2682, 47873), (2931, 43806), (3129, 41034), (5862, 21903), (6258, 20517), (6839, 18774), (7301, 17586), (8793, 14602), (9387, 13678)]