20160671920

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1305743}}^1$

素因数の和:1305949

約数の個数: 40

約数和(自身を含む): 47116466496

約数和(自身を除く): 26955794576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1544, 1930, 3088, 3860, 7720, 15440, 1305743, 2611486, 5222972, 6528715, 10445944, 13057430, 20891888, 26114860, 52229720, 104459440, 252008399, 504016798, 1008033596, 1260041995, 2016067192, 2520083990, 4032134384, 5040167980, 10080335960, 20160671920]

約数ペア:

[(1, 20160671920), (2, 10080335960), (4, 5040167980), (5, 4032134384), (8, 2520083990), (10, 2016067192), (16, 1260041995), (20, 1008033596), (40, 504016798), (80, 252008399), (193, 104459440), (386, 52229720), (772, 26114860), (965, 20891888), (1544, 13057430), (1930, 10445944), (3088, 6528715), (3860, 5222972), (7720, 2611486), (15440, 1305743)]