1280491600

素因数分解:

$2^4\times 5^2\times {\mathrm{3201229}}^1$

素因数の和:3201247

約数の個数: 30

約数和(自身を含む): 3076382030

約数和(自身を除く): 1795890430

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 3201229, 6402458, 12804916, 16006145, 25609832, 32012290, 51219664, 64024580, 80030725, 128049160, 160061450, 256098320, 320122900, 640245800, 1280491600]

約数ペア:

[(1, 1280491600), (2, 640245800), (4, 320122900), (5, 256098320), (8, 160061450), (10, 128049160), (16, 80030725), (20, 64024580), (25, 51219664), (40, 32012290), (50, 25609832), (80, 16006145), (100, 12804916), (200, 6402458), (400, 3201229)]