28555000

素因数分解:

$2^3\times 5^4\times {\mathrm{5711}}^1$

素因数の和:5737

約数の個数: 40

約数和(自身を含む): 66916080

約数和(自身を除く): 38361080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 5711, 11422, 22844, 28555, 45688, 57110, 114220, 142775, 228440, 285550, 571100, 713875, 1142200, 1427750, 2855500, 3569375, 5711000, 7138750, 14277500, 28555000]

約数ペア:

[(1, 28555000), (2, 14277500), (4, 7138750), (5, 5711000), (8, 3569375), (10, 2855500), (20, 1427750), (25, 1142200), (40, 713875), (50, 571100), (100, 285550), (125, 228440), (200, 142775), (250, 114220), (500, 57110), (625, 45688), (1000, 28555), (1250, 22844), (2500, 11422), (5000, 5711)]