1289759872

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1021}}^1$

素因数の和:1245

約数の個数: 64

約数和(自身を含む): 2626948800

約数和(自身を除く): 1337188928

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 139, 142, 278, 284, 556, 568, 1021, 1112, 1136, 2042, 2224, 2272, 4084, 4448, 4544, 8168, 8896, 9088, 9869, 16336, 17792, 19738, 32672, 39476, 65344, 72491, 78952, 130688, 141919, 144982, 157904, 283838, 289964, 315808, 567676, 579928, 631616, 1135352, 1159856, 1263232, 2270704, 2319712, 4541408, 4639424, 9082816, 9278848, 10076249, 18165632, 20152498, 40304996, 80609992, 161219984, 322439968, 644879936, 1289759872]

約数ペア:

[(1, 1289759872), (2, 644879936), (4, 322439968), (8, 161219984), (16, 80609992), (32, 40304996), (64, 20152498), (71, 18165632), (128, 10076249), (139, 9278848), (142, 9082816), (278, 4639424), (284, 4541408), (556, 2319712), (568, 2270704), (1021, 1263232), (1112, 1159856), (1136, 1135352), (2042, 631616), (2224, 579928), (2272, 567676), (4084, 315808), (4448, 289964), (4544, 283838), (8168, 157904), (8896, 144982), (9088, 141919), (9869, 130688), (16336, 78952), (17792, 72491), (19738, 65344), (32672, 39476)]