1279200256

素因数分解:

$2^{10}\times {\mathrm{61}}^1\times {\mathrm{20479}}^1$

素因数の和:20560

約数の個数: 44

約数和(自身を含む): 2599198720

約数和(自身を除く): 1319998464

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 512, 976, 1024, 1952, 3904, 7808, 15616, 20479, 31232, 40958, 62464, 81916, 163832, 327664, 655328, 1249219, 1310656, 2498438, 2621312, 4996876, 5242624, 9993752, 10485248, 19987504, 20970496, 39975008, 79950016, 159900032, 319800064, 639600128, 1279200256]

約数ペア:

[(1, 1279200256), (2, 639600128), (4, 319800064), (8, 159900032), (16, 79950016), (32, 39975008), (61, 20970496), (64, 19987504), (122, 10485248), (128, 9993752), (244, 5242624), (256, 4996876), (488, 2621312), (512, 2498438), (976, 1310656), (1024, 1249219), (1952, 655328), (3904, 327664), (7808, 163832), (15616, 81916), (20479, 62464), (31232, 40958)]