61781420

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{6449}}^1$

素因数の和:6937

約数の個数: 24

約数和(自身を含む): 130032000

約数和(自身を除く): 68250580

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 6449, 9580, 12898, 25796, 32245, 64490, 128980, 3089071, 6178142, 12356284, 15445355, 30890710, 61781420]

約数ペア:

[(1, 61781420), (2, 30890710), (4, 15445355), (5, 12356284), (10, 6178142), (20, 3089071), (479, 128980), (958, 64490), (1916, 32245), (2395, 25796), (4790, 12898), (6449, 9580)]