645799936

素因数分解:

$2^{13}\times {\mathrm{31}}^1\times {\mathrm{2543}}^1$

素因数の和:2600

約数の個数: 56

約数和(自身を含む): 1333707264

約数和(自身を除く): 687907328

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1024, 1984, 2048, 2543, 3968, 4096, 5086, 7936, 8192, 10172, 15872, 20344, 31744, 40688, 63488, 78833, 81376, 126976, 157666, 162752, 253952, 315332, 325504, 630664, 651008, 1261328, 1302016, 2522656, 2604032, 5045312, 5208064, 10090624, 10416128, 20181248, 20832256, 40362496, 80724992, 161449984, 322899968, 645799936]

約数ペア:

[(1, 645799936), (2, 322899968), (4, 161449984), (8, 80724992), (16, 40362496), (31, 20832256), (32, 20181248), (62, 10416128), (64, 10090624), (124, 5208064), (128, 5045312), (248, 2604032), (256, 2522656), (496, 1302016), (512, 1261328), (992, 651008), (1024, 630664), (1984, 325504), (2048, 315332), (2543, 253952), (3968, 162752), (4096, 157666), (5086, 126976), (7936, 81376), (8192, 78833), (10172, 63488), (15872, 40688), (20344, 31744)]