520001920

素因数分解:

$2^7\times 5^1\times {\mathrm{812503}}^1$

素因数の和:812522

約数の個数: 32

約数和(自身を含む): 1243131120

約数和(自身を除く): 723129200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 812503, 1625006, 3250012, 4062515, 6500024, 8125030, 13000048, 16250060, 26000096, 32500120, 52000192, 65000240, 104000384, 130000480, 260000960, 520001920]

約数ペア:

[(1, 520001920), (2, 260000960), (4, 130000480), (5, 104000384), (8, 65000240), (10, 52000192), (16, 32500120), (20, 26000096), (32, 16250060), (40, 13000048), (64, 8125030), (80, 6500024), (128, 4062515), (160, 3250012), (320, 1625006), (640, 812503)]