3999414400

素因数分解:

$2^7\times 5^2\times {\mathrm{1249817}}^1$

素因数の和:1249841

約数の個数: 48

約数和(自身を含む): 9879811290

約数和(自身を除く): 5880396890

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, 1249817, 2499634, 4999268, 6249085, 9998536, 12498170, 19997072, 24996340, 31245425, 39994144, 49992680, 62490850, 79988288, 99985360, 124981700, 159976576, 199970720, 249963400, 399941440, 499926800, 799882880, 999853600, 1999707200, 3999414400]

約数ペア:

[(1, 3999414400), (2, 1999707200), (4, 999853600), (5, 799882880), (8, 499926800), (10, 399941440), (16, 249963400), (20, 199970720), (25, 159976576), (32, 124981700), (40, 99985360), (50, 79988288), (64, 62490850), (80, 49992680), (100, 39994144), (128, 31245425), (160, 24996340), (200, 19997072), (320, 12498170), (400, 9998536), (640, 6249085), (800, 4999268), (1600, 2499634), (3200, 1249817)]