133313840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{769}}^1$

素因数の和:990

約数の個数: 80

約数和(自身を含む): 340290720

約数和(自身を除く): 206976880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 440, 769, 788, 880, 985, 1538, 1576, 1970, 2167, 3076, 3152, 3845, 3940, 4334, 6152, 7690, 7880, 8459, 8668, 10835, 12304, 15380, 15760, 16918, 17336, 21670, 30760, 33836, 34672, 42295, 43340, 61520, 67672, 84590, 86680, 135344, 151493, 169180, 173360, 302986, 338360, 605972, 676720, 757465, 1211944, 1514930, 1666423, 2423888, 3029860, 3332846, 6059720, 6665692, 8332115, 12119440, 13331384, 16664230, 26662768, 33328460, 66656920, 133313840]

約数ペア:

[(1, 133313840), (2, 66656920), (4, 33328460), (5, 26662768), (8, 16664230), (10, 13331384), (11, 12119440), (16, 8332115), (20, 6665692), (22, 6059720), (40, 3332846), (44, 3029860), (55, 2423888), (80, 1666423), (88, 1514930), (110, 1211944), (176, 757465), (197, 676720), (220, 605972), (394, 338360), (440, 302986), (769, 173360), (788, 169180), (880, 151493), (985, 135344), (1538, 86680), (1576, 84590), (1970, 67672), (2167, 61520), (3076, 43340), (3152, 42295), (3845, 34672), (3940, 33836), (4334, 30760), (6152, 21670), (7690, 17336), (7880, 16918), (8459, 15760), (8668, 15380), (10835, 12304)]