1388891456

素因数分解:

$2^6\times {\mathrm{83}}^1\times {\mathrm{261463}}^1$

素因数の和:261558

約数の個数: 28

約数和(自身を含む): 2789297952

約数和(自身を除く): 1400406496

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 166, 332, 664, 1328, 2656, 5312, 261463, 522926, 1045852, 2091704, 4183408, 8366816, 16733632, 21701429, 43402858, 86805716, 173611432, 347222864, 694445728, 1388891456]

約数ペア:

[(1, 1388891456), (2, 694445728), (4, 347222864), (8, 173611432), (16, 86805716), (32, 43402858), (64, 21701429), (83, 16733632), (166, 8366816), (332, 4183408), (664, 2091704), (1328, 1045852), (2656, 522926), (5312, 261463)]