128371904

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{461}}^1$

素因数の和:721

約数の個数: 56

約数和(自身を含む): 269900400

約数和(自身を除く): 141528496

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 229, 304, 458, 461, 608, 916, 922, 1216, 1832, 1844, 3664, 3688, 4351, 7328, 7376, 8702, 8759, 14656, 14752, 17404, 17518, 29504, 34808, 35036, 69616, 70072, 105569, 139232, 140144, 211138, 278464, 280288, 422276, 560576, 844552, 1689104, 2005811, 3378208, 4011622, 6756416, 8023244, 16046488, 32092976, 64185952, 128371904]

約数ペア:

[(1, 128371904), (2, 64185952), (4, 32092976), (8, 16046488), (16, 8023244), (19, 6756416), (32, 4011622), (38, 3378208), (64, 2005811), (76, 1689104), (152, 844552), (229, 560576), (304, 422276), (458, 280288), (461, 278464), (608, 211138), (916, 140144), (922, 139232), (1216, 105569), (1832, 70072), (1844, 69616), (3664, 35036), (3688, 34808), (4351, 29504), (7328, 17518), (7376, 17404), (8702, 14752), (8759, 14656)]