1381027328

素因数分解:

$2^9\times {\mathrm{29}}^1\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:659

約数の個数: 80

約数和(自身を含む): 2873320560

約数和(自身を除く): 1492293232

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 281, 331, 464, 512, 562, 662, 928, 1124, 1324, 1856, 2248, 2648, 3712, 4496, 5296, 7424, 8149, 8992, 9599, 10592, 14848, 16298, 17984, 19198, 21184, 32596, 35968, 38396, 42368, 65192, 71936, 76792, 84736, 93011, 130384, 143872, 153584, 169472, 186022, 260768, 307168, 372044, 521536, 614336, 744088, 1043072, 1228672, 1488176, 2086144, 2457344, 2697319, 2976352, 4172288, 4914688, 5394638, 5952704, 10789276, 11905408, 21578552, 23810816, 43157104, 47621632, 86314208, 172628416, 345256832, 690513664, 1381027328]

約数ペア:

[(1, 1381027328), (2, 690513664), (4, 345256832), (8, 172628416), (16, 86314208), (29, 47621632), (32, 43157104), (58, 23810816), (64, 21578552), (116, 11905408), (128, 10789276), (232, 5952704), (256, 5394638), (281, 4914688), (331, 4172288), (464, 2976352), (512, 2697319), (562, 2457344), (662, 2086144), (928, 1488176), (1124, 1228672), (1324, 1043072), (1856, 744088), (2248, 614336), (2648, 521536), (3712, 372044), (4496, 307168), (5296, 260768), (7424, 186022), (8149, 169472), (8992, 153584), (9599, 143872), (10592, 130384), (14848, 93011), (16298, 84736), (17984, 76792), (19198, 71936), (21184, 65192), (32596, 42368), (35968, 38396)]