20432000

素因数分解:

$2^7\times 5^3\times {\mathrm{1277}}^1$

素因数の和:1306

約数の個数: 64

約数和(自身を含む): 50838840

約数和(自身を除く): 30406840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 640, 800, 1000, 1277, 1600, 2000, 2554, 3200, 4000, 5108, 6385, 8000, 10216, 12770, 16000, 20432, 25540, 31925, 40864, 51080, 63850, 81728, 102160, 127700, 159625, 163456, 204320, 255400, 319250, 408640, 510800, 638500, 817280, 1021600, 1277000, 2043200, 2554000, 4086400, 5108000, 10216000, 20432000]

約数ペア:

[(1, 20432000), (2, 10216000), (4, 5108000), (5, 4086400), (8, 2554000), (10, 2043200), (16, 1277000), (20, 1021600), (25, 817280), (32, 638500), (40, 510800), (50, 408640), (64, 319250), (80, 255400), (100, 204320), (125, 163456), (128, 159625), (160, 127700), (200, 102160), (250, 81728), (320, 63850), (400, 51080), (500, 40864), (640, 31925), (800, 25540), (1000, 20432), (1277, 16000), (1600, 12770), (2000, 10216), (2554, 8000), (3200, 6385), (4000, 5108)]