20660480

素因数分解:

$2^8\times 5^1\times {\mathrm{16141}}^1$

素因数の和:16162

約数の個数: 36

約数和(自身を含む): 49491372

約数和(自身を除く): 28830892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16141, 32282, 64564, 80705, 129128, 161410, 258256, 322820, 516512, 645640, 1033024, 1291280, 2066048, 2582560, 4132096, 5165120, 10330240, 20660480]

約数ペア:

[(1, 20660480), (2, 10330240), (4, 5165120), (5, 4132096), (8, 2582560), (10, 2066048), (16, 1291280), (20, 1033024), (32, 645640), (40, 516512), (64, 322820), (80, 258256), (128, 161410), (160, 129128), (256, 80705), (320, 64564), (640, 32282), (1280, 16141)]