20567680

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4591}}^1$

素因数の和:4617

約数の個数: 64

約数和(自身を含む): 56206080

約数和(自身を除く): 35638400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4591, 9182, 18364, 22955, 32137, 36728, 45910, 64274, 73456, 91820, 128548, 146912, 160685, 183640, 257096, 293824, 321370, 367280, 514192, 587648, 642740, 734560, 1028384, 1285480, 1469120, 2056768, 2570960, 2938240, 4113536, 5141920, 10283840, 20567680]

約数ペア:

[(1, 20567680), (2, 10283840), (4, 5141920), (5, 4113536), (7, 2938240), (8, 2570960), (10, 2056768), (14, 1469120), (16, 1285480), (20, 1028384), (28, 734560), (32, 642740), (35, 587648), (40, 514192), (56, 367280), (64, 321370), (70, 293824), (80, 257096), (112, 183640), (128, 160685), (140, 146912), (160, 128548), (224, 91820), (280, 73456), (320, 64274), (448, 45910), (560, 36728), (640, 32137), (896, 22955), (1120, 18364), (2240, 9182), (4480, 4591)]