1388391085

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1\times {\mathrm{659}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 1788019200

約数和(自身を除く): 399628115

約数列:

[1, 5, 19, 67, 95, 331, 335, 659, 1273, 1655, 3295, 6289, 6365, 12521, 22177, 31445, 44153, 62605, 110885, 218129, 220765, 421363, 838907, 1090645, 2106815, 4144451, 4194535, 14614643, 20722255, 73073215, 277678217, 1388391085]

約数ペア:

[(1, 1388391085), (5, 277678217), (19, 73073215), (67, 20722255), (95, 14614643), (331, 4194535), (335, 4144451), (659, 2106815), (1273, 1090645), (1655, 838907), (3295, 421363), (6289, 220765), (6365, 218129), (12521, 110885), (22177, 62605), (31445, 44153)]