1338540800

素因数分解:

$2^8\times 5^2\times {\mathrm{209147}}^1$

素因数の和:209173

約数の個数: 54

約数和(自身を含む): 3313113468

約数和(自身を除く): 1974572668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 6400, 209147, 418294, 836588, 1045735, 1673176, 2091470, 3346352, 4182940, 5228675, 6692704, 8365880, 10457350, 13385408, 16731760, 20914700, 26770816, 33463520, 41829400, 53541632, 66927040, 83658800, 133854080, 167317600, 267708160, 334635200, 669270400, 1338540800]

約数ペア:

[(1, 1338540800), (2, 669270400), (4, 334635200), (5, 267708160), (8, 167317600), (10, 133854080), (16, 83658800), (20, 66927040), (25, 53541632), (32, 41829400), (40, 33463520), (50, 26770816), (64, 20914700), (80, 16731760), (100, 13385408), (128, 10457350), (160, 8365880), (200, 6692704), (256, 5228675), (320, 4182940), (400, 3346352), (640, 2091470), (800, 1673176), (1280, 1045735), (1600, 836588), (3200, 418294), (6400, 209147)]