20324000

素因数分解:

$2^5\times 5^3\times {\mathrm{5081}}^1$

素因数の和:5106

約数の個数: 48

約数和(自身を含む): 49945896

約数和(自身を除く): 29621896

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, 5081, 10162, 20324, 25405, 40648, 50810, 81296, 101620, 127025, 162592, 203240, 254050, 406480, 508100, 635125, 812960, 1016200, 1270250, 2032400, 2540500, 4064800, 5081000, 10162000, 20324000]

約数ペア:

[(1, 20324000), (2, 10162000), (4, 5081000), (5, 4064800), (8, 2540500), (10, 2032400), (16, 1270250), (20, 1016200), (25, 812960), (32, 635125), (40, 508100), (50, 406480), (80, 254050), (100, 203240), (125, 162592), (160, 127025), (200, 101620), (250, 81296), (400, 50810), (500, 40648), (800, 25405), (1000, 20324), (2000, 10162), (4000, 5081)]