39648256

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{1249}}^1$

素因数の和:1300

約数の個数: 44

約数和(自身を含む): 81880000

約数和(自身を除く): 42231744

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1024, 1249, 1984, 2498, 3968, 4996, 7936, 9992, 15872, 19984, 31744, 38719, 39968, 77438, 79936, 154876, 159872, 309752, 319744, 619504, 639488, 1239008, 1278976, 2478016, 4956032, 9912064, 19824128, 39648256]

約数ペア:

[(1, 39648256), (2, 19824128), (4, 9912064), (8, 4956032), (16, 2478016), (31, 1278976), (32, 1239008), (62, 639488), (64, 619504), (124, 319744), (128, 309752), (248, 159872), (256, 154876), (496, 79936), (512, 77438), (992, 39968), (1024, 38719), (1249, 31744), (1984, 19984), (2498, 15872), (3968, 9992), (4996, 7936)]