20004352

素因数分解:

$2^9\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:546

約数の個数: 40

約数和(自身を含む): 40510800

約数和(自身を除く): 20506448

約数列:

[1, 2, 4, 8, 16, 32, 64, 89, 128, 178, 256, 356, 439, 512, 712, 878, 1424, 1756, 2848, 3512, 5696, 7024, 11392, 14048, 22784, 28096, 39071, 45568, 56192, 78142, 112384, 156284, 224768, 312568, 625136, 1250272, 2500544, 5001088, 10002176, 20004352]

約数ペア:

[(1, 20004352), (2, 10002176), (4, 5001088), (8, 2500544), (16, 1250272), (32, 625136), (64, 312568), (89, 224768), (128, 156284), (178, 112384), (256, 78142), (356, 56192), (439, 45568), (512, 39071), (712, 28096), (878, 22784), (1424, 14048), (1756, 11392), (2848, 7024), (3512, 5696)]