20120778580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6248689}}^1$

素因数の和:6248728

約数の個数: 48

約数和(自身を含む): 50389436160

約数和(自身を除く): 30268657580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6248689, 12497378, 24994756, 31243445, 43740823, 62486890, 87481646, 124973780, 143719847, 174963292, 218704115, 287439694, 437408230, 574879388, 718599235, 874816460, 1006038929, 1437198470, 2012077858, 2874396940, 4024155716, 5030194645, 10060389290, 20120778580]

約数ペア:

[(1, 20120778580), (2, 10060389290), (4, 5030194645), (5, 4024155716), (7, 2874396940), (10, 2012077858), (14, 1437198470), (20, 1006038929), (23, 874816460), (28, 718599235), (35, 574879388), (46, 437408230), (70, 287439694), (92, 218704115), (115, 174963292), (140, 143719847), (161, 124973780), (230, 87481646), (322, 62486890), (460, 43740823), (644, 31243445), (805, 24994756), (1610, 12497378), (3220, 6248689)]