19803800

素因数分解:

$2^3\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1193}}^1$

素因数の和:1292

約数の個数: 48

約数和(自身を含む): 46637640

約数和(自身を除く): 26833840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 83, 100, 166, 200, 332, 415, 664, 830, 1193, 1660, 2075, 2386, 3320, 4150, 4772, 5965, 8300, 9544, 11930, 16600, 23860, 29825, 47720, 59650, 99019, 119300, 198038, 238600, 396076, 495095, 792152, 990190, 1980380, 2475475, 3960760, 4950950, 9901900, 19803800]

約数ペア:

[(1, 19803800), (2, 9901900), (4, 4950950), (5, 3960760), (8, 2475475), (10, 1980380), (20, 990190), (25, 792152), (40, 495095), (50, 396076), (83, 238600), (100, 198038), (166, 119300), (200, 99019), (332, 59650), (415, 47720), (664, 29825), (830, 23860), (1193, 16600), (1660, 11930), (2075, 9544), (2386, 8300), (3320, 5965), (4150, 4772)]