648285376

素因数分解:

$2^6\times {\mathrm{79}}^1\times {\mathrm{128221}}^1$

素因数の和:128312

約数の個数: 28

約数和(自身を含む): 1302735520

約数和(自身を除く): 654450144

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 158, 316, 632, 1264, 2528, 5056, 128221, 256442, 512884, 1025768, 2051536, 4103072, 8206144, 10129459, 20258918, 40517836, 81035672, 162071344, 324142688, 648285376]

約数ペア:

[(1, 648285376), (2, 324142688), (4, 162071344), (8, 81035672), (16, 40517836), (32, 20258918), (64, 10129459), (79, 8206144), (158, 4103072), (316, 2051536), (632, 1025768), (1264, 512884), (2528, 256442), (5056, 128221)]