20180450071900

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{449}}^1\times {\mathrm{1120831}}^1$

素因数の和:1121695

約数の個数: 72

約数和(自身を含む): 43998596409600

約数和(自身を除く): 23818146337700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 449, 802, 898, 1604, 1796, 2005, 2245, 4010, 4490, 8020, 8980, 10025, 11225, 20050, 22450, 40100, 44900, 180049, 360098, 720196, 900245, 1120831, 1800490, 2241662, 3600980, 4483324, 4501225, 5604155, 9002450, 11208310, 18004900, 22416620, 28020775, 56041550, 112083100, 449453231, 503253119, 898906462, 1006506238, 1797812924, 2013012476, 2247266155, 2516265595, 4494532310, 5032531190, 8989064620, 10065062380, 11236330775, 12581327975, 22472661550, 25162655950, 44945323100, 50325311900, 201804500719, 403609001438, 807218002876, 1009022503595, 2018045007190, 4036090014380, 5045112517975, 10090225035950, 20180450071900]

約数ペア:

[(1, 20180450071900), (2, 10090225035950), (4, 5045112517975), (5, 4036090014380), (10, 2018045007190), (20, 1009022503595), (25, 807218002876), (50, 403609001438), (100, 201804500719), (401, 50325311900), (449, 44945323100), (802, 25162655950), (898, 22472661550), (1604, 12581327975), (1796, 11236330775), (2005, 10065062380), (2245, 8989064620), (4010, 5032531190), (4490, 4494532310), (8020, 2516265595), (8980, 2247266155), (10025, 2013012476), (11225, 1797812924), (20050, 1006506238), (22450, 898906462), (40100, 503253119), (44900, 449453231), (180049, 112083100), (360098, 56041550), (720196, 28020775), (900245, 22416620), (1120831, 18004900), (1800490, 11208310), (2241662, 9002450), (3600980, 5604155), (4483324, 4501225)]