721946992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{20063}}^1$

素因数の和:20257

約数の個数: 40

約数和(自身を含む): 1515153024

約数和(自身を除く): 793206032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 692, 1384, 2249, 2768, 4498, 8996, 17992, 20063, 35984, 40126, 80252, 160504, 260819, 321008, 521638, 1043276, 2086552, 3470899, 4173104, 6941798, 13883596, 27767192, 45121687, 55534384, 90243374, 180486748, 360973496, 721946992]

約数ペア:

[(1, 721946992), (2, 360973496), (4, 180486748), (8, 90243374), (13, 55534384), (16, 45121687), (26, 27767192), (52, 13883596), (104, 6941798), (173, 4173104), (208, 3470899), (346, 2086552), (692, 1043276), (1384, 521638), (2249, 321008), (2768, 260819), (4498, 160504), (8996, 80252), (17992, 40126), (20063, 35984)]