12800478208

素因数分解:

$2^{10}\times 7^1\times {\mathrm{101}}^1\times {\mathrm{17681}}^1$

素因数の和:17809

約数の個数: 88

約数和(自身を含む): 29535164064

約数和(自身を除く): 16734685856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 128, 202, 224, 256, 404, 448, 512, 707, 808, 896, 1024, 1414, 1616, 1792, 2828, 3232, 3584, 5656, 6464, 7168, 11312, 12928, 17681, 22624, 25856, 35362, 45248, 51712, 70724, 90496, 103424, 123767, 141448, 180992, 247534, 282896, 361984, 495068, 565792, 723968, 990136, 1131584, 1785781, 1980272, 2263168, 3571562, 3960544, 4526336, 7143124, 7921088, 9052672, 12500467, 14286248, 15842176, 18105344, 25000934, 28572496, 31684352, 50001868, 57144992, 63368704, 100003736, 114289984, 126737408, 200007472, 228579968, 400014944, 457159936, 800029888, 914319872, 1600059776, 1828639744, 3200119552, 6400239104, 12800478208]

約数ペア:

[(1, 12800478208), (2, 6400239104), (4, 3200119552), (7, 1828639744), (8, 1600059776), (14, 914319872), (16, 800029888), (28, 457159936), (32, 400014944), (56, 228579968), (64, 200007472), (101, 126737408), (112, 114289984), (128, 100003736), (202, 63368704), (224, 57144992), (256, 50001868), (404, 31684352), (448, 28572496), (512, 25000934), (707, 18105344), (808, 15842176), (896, 14286248), (1024, 12500467), (1414, 9052672), (1616, 7921088), (1792, 7143124), (2828, 4526336), (3232, 3960544), (3584, 3571562), (5656, 2263168), (6464, 1980272), (7168, 1785781), (11312, 1131584), (12928, 990136), (17681, 723968), (22624, 565792), (25856, 495068), (35362, 361984), (45248, 282896), (51712, 247534), (70724, 180992), (90496, 141448), (103424, 123767)]