129406640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{479}}^1$

素因数の和:810

約数の個数: 80

約数和(自身を含む): 329978880

約数和(自身を除く): 200572240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 307, 440, 479, 614, 880, 958, 1228, 1535, 1916, 2395, 2456, 3070, 3377, 3832, 4790, 4912, 5269, 6140, 6754, 7664, 9580, 10538, 12280, 13508, 16885, 19160, 21076, 24560, 26345, 27016, 33770, 38320, 42152, 52690, 54032, 67540, 84304, 105380, 135080, 147053, 210760, 270160, 294106, 421520, 588212, 735265, 1176424, 1470530, 1617583, 2352848, 2941060, 3235166, 5882120, 6470332, 8087915, 11764240, 12940664, 16175830, 25881328, 32351660, 64703320, 129406640]

約数ペア:

[(1, 129406640), (2, 64703320), (4, 32351660), (5, 25881328), (8, 16175830), (10, 12940664), (11, 11764240), (16, 8087915), (20, 6470332), (22, 5882120), (40, 3235166), (44, 2941060), (55, 2352848), (80, 1617583), (88, 1470530), (110, 1176424), (176, 735265), (220, 588212), (307, 421520), (440, 294106), (479, 270160), (614, 210760), (880, 147053), (958, 135080), (1228, 105380), (1535, 84304), (1916, 67540), (2395, 54032), (2456, 52690), (3070, 42152), (3377, 38320), (3832, 33770), (4790, 27016), (4912, 26345), (5269, 24560), (6140, 21076), (6754, 19160), (7664, 16885), (9580, 13508), (10538, 12280)]