81430400

素因数分解:

$2^7\times 5^2\times {\mathrm{25447}}^1$

素因数の和:25471

約数の個数: 48

約数和(自身を含む): 201166440

約数和(自身を除く): 119736040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 25447, 50894, 101788, 127235, 203576, 254470, 407152, 508940, 636175, 814304, 1017880, 1272350, 1628608, 2035760, 2544700, 3257216, 4071520, 5089400, 8143040, 10178800, 16286080, 20357600, 40715200, 81430400]

約数ペア:

[(1, 81430400), (2, 40715200), (4, 20357600), (5, 16286080), (8, 10178800), (10, 8143040), (16, 5089400), (20, 4071520), (25, 3257216), (32, 2544700), (40, 2035760), (50, 1628608), (64, 1272350), (80, 1017880), (100, 814304), (128, 636175), (160, 508940), (200, 407152), (320, 254470), (400, 203576), (640, 127235), (800, 101788), (1600, 50894), (3200, 25447)]