640534144

素因数分解:

$2^7\times {\mathrm{41}}^1\times {\mathrm{122053}}^1$

素因数の和:122108

約数の個数: 32

約数和(自身を含む): 1307198340

約数和(自身を除く): 666664196

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 128, 164, 328, 656, 1312, 2624, 5248, 122053, 244106, 488212, 976424, 1952848, 3905696, 5004173, 7811392, 10008346, 15622784, 20016692, 40033384, 80066768, 160133536, 320267072, 640534144]

約数ペア:

[(1, 640534144), (2, 320267072), (4, 160133536), (8, 80066768), (16, 40033384), (32, 20016692), (41, 15622784), (64, 10008346), (82, 7811392), (128, 5004173), (164, 3905696), (328, 1952848), (656, 976424), (1312, 488212), (2624, 244106), (5248, 122053)]