20512861218

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1\times {\mathrm{769}}^1$

素因数の和:1316

約数の個数: 96

約数和(自身を含む): 46497250800

約数和(自身を除く): 25984389582

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 137, 174, 261, 274, 373, 411, 522, 746, 769, 822, 1119, 1233, 1538, 2238, 2307, 2466, 3357, 3973, 4614, 6714, 6921, 7946, 10817, 11919, 13842, 21634, 22301, 23838, 32451, 35757, 44602, 51101, 64902, 66903, 71514, 97353, 102202, 105353, 133806, 153303, 194706, 200709, 210706, 286837, 306606, 316059, 401418, 459909, 573674, 632118, 860511, 919818, 948177, 1481929, 1721022, 1896354, 2581533, 2963858, 3055237, 4445787, 5163066, 6110474, 8318273, 8891574, 9165711, 13337361, 16636546, 18331422, 24954819, 26674722, 27497133, 39296669, 49909638, 54994266, 74864457, 78593338, 117890007, 149728914, 235780014, 353670021, 707340042, 1139603401, 2279206802, 3418810203, 6837620406, 10256430609, 20512861218]

約数ペア:

[(1, 20512861218), (2, 10256430609), (3, 6837620406), (6, 3418810203), (9, 2279206802), (18, 1139603401), (29, 707340042), (58, 353670021), (87, 235780014), (137, 149728914), (174, 117890007), (261, 78593338), (274, 74864457), (373, 54994266), (411, 49909638), (522, 39296669), (746, 27497133), (769, 26674722), (822, 24954819), (1119, 18331422), (1233, 16636546), (1538, 13337361), (2238, 9165711), (2307, 8891574), (2466, 8318273), (3357, 6110474), (3973, 5163066), (4614, 4445787), (6714, 3055237), (6921, 2963858), (7946, 2581533), (10817, 1896354), (11919, 1721022), (13842, 1481929), (21634, 948177), (22301, 919818), (23838, 860511), (32451, 632118), (35757, 573674), (44602, 459909), (51101, 401418), (64902, 316059), (66903, 306606), (71514, 286837), (97353, 210706), (102202, 200709), (105353, 194706), (133806, 153303)]