128254880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:538

約数の個数: 96

約数和(自身を含む): 329014224

約数和(自身を除く): 200759344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 197, 208, 260, 313, 394, 416, 520, 626, 788, 985, 1040, 1252, 1565, 1576, 1970, 2080, 2504, 2561, 3130, 3152, 3940, 4069, 5008, 5122, 6260, 6304, 7880, 8138, 10016, 10244, 12520, 12805, 15760, 16276, 20345, 20488, 25040, 25610, 31520, 32552, 40690, 40976, 50080, 51220, 61661, 65104, 81380, 81952, 102440, 123322, 130208, 162760, 204880, 246644, 308305, 325520, 409760, 493288, 616610, 651040, 801593, 986576, 1233220, 1603186, 1973152, 2466440, 3206372, 4007965, 4932880, 6412744, 8015930, 9865760, 12825488, 16031860, 25650976, 32063720, 64127440, 128254880]

約数ペア:

[(1, 128254880), (2, 64127440), (4, 32063720), (5, 25650976), (8, 16031860), (10, 12825488), (13, 9865760), (16, 8015930), (20, 6412744), (26, 4932880), (32, 4007965), (40, 3206372), (52, 2466440), (65, 1973152), (80, 1603186), (104, 1233220), (130, 986576), (160, 801593), (197, 651040), (208, 616610), (260, 493288), (313, 409760), (394, 325520), (416, 308305), (520, 246644), (626, 204880), (788, 162760), (985, 130208), (1040, 123322), (1252, 102440), (1565, 81952), (1576, 81380), (1970, 65104), (2080, 61661), (2504, 51220), (2561, 50080), (3130, 40976), (3152, 40690), (3940, 32552), (4069, 31520), (5008, 25610), (5122, 25040), (6260, 20488), (6304, 20345), (7880, 16276), (8138, 15760), (10016, 12805), (10244, 12520)]