40988000

素因数分解:

$2^5\times 5^3\times {\mathrm{10247}}^1$

素因数の和:10272

約数の個数: 48

約数和(自身を含む): 100717344

約数和(自身を除く): 59729344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 10247, 20494, 40988, 51235, 81976, 102470, 163952, 204940, 256175, 327904, 409880, 512350, 819760, 1024700, 1280875, 1639520, 2049400, 2561750, 4098800, 5123500, 8197600, 10247000, 20494000, 40988000]

約数ペア:

[(1, 40988000), (2, 20494000), (4, 10247000), (5, 8197600), (8, 5123500), (10, 4098800), (16, 2561750), (20, 2049400), (25, 1639520), (32, 1280875), (40, 1024700), (50, 819760), (80, 512350), (100, 409880), (125, 327904), (160, 256175), (200, 204940), (250, 163952), (400, 102470), (500, 81976), (800, 51235), (1000, 40988), (2000, 20494), (4000, 10247)]