20288519900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4241}}^1\times {\mathrm{4349}}^1$

素因数の和:8615

約数の個数: 72

約数和(自身を含む): 48050830800

約数和(自身を除く): 27762310900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 4241, 4349, 8482, 8698, 16964, 17396, 21205, 21745, 42410, 43490, 46651, 47839, 84820, 86980, 93302, 95678, 106025, 108725, 186604, 191356, 212050, 217450, 233255, 239195, 424100, 434900, 466510, 478390, 933020, 956780, 1166275, 1195975, 2332550, 2391950, 4665100, 4783900, 18444109, 36888218, 73776436, 92220545, 184441090, 202885199, 368882180, 405770398, 461102725, 811540796, 922205450, 1014425995, 1844410900, 2028851990, 4057703980, 5072129975, 10144259950, 20288519900]

約数ペア:

[(1, 20288519900), (2, 10144259950), (4, 5072129975), (5, 4057703980), (10, 2028851990), (11, 1844410900), (20, 1014425995), (22, 922205450), (25, 811540796), (44, 461102725), (50, 405770398), (55, 368882180), (100, 202885199), (110, 184441090), (220, 92220545), (275, 73776436), (550, 36888218), (1100, 18444109), (4241, 4783900), (4349, 4665100), (8482, 2391950), (8698, 2332550), (16964, 1195975), (17396, 1166275), (21205, 956780), (21745, 933020), (42410, 478390), (43490, 466510), (46651, 434900), (47839, 424100), (84820, 239195), (86980, 233255), (93302, 217450), (95678, 212050), (106025, 191356), (108725, 186604)]