19940540800

素因数分解:

$2^7\times 5^2\times {\mathrm{6231419}}^1$

素因数の和:6231443

約数の個数: 48

約数和(自身を含む): 49259375100

約数和(自身を除く): 29318834300

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, 6231419, 12462838, 24925676, 31157095, 49851352, 62314190, 99702704, 124628380, 155785475, 199405408, 249256760, 311570950, 398810816, 498513520, 623141900, 797621632, 997027040, 1246283800, 1994054080, 2492567600, 3988108160, 4985135200, 9970270400, 19940540800]

約数ペア:

[(1, 19940540800), (2, 9970270400), (4, 4985135200), (5, 3988108160), (8, 2492567600), (10, 1994054080), (16, 1246283800), (20, 997027040), (25, 797621632), (32, 623141900), (40, 498513520), (50, 398810816), (64, 311570950), (80, 249256760), (100, 199405408), (128, 155785475), (160, 124628380), (200, 99702704), (320, 62314190), (400, 49851352), (640, 31157095), (800, 24925676), (1600, 12462838), (3200, 6231419)]