55112720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 139209840

約数和(自身を除く): 84097120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 197, 208, 260, 269, 394, 520, 538, 788, 985, 1040, 1076, 1345, 1576, 1970, 2152, 2561, 2690, 3152, 3497, 3940, 4304, 5122, 5380, 6994, 7880, 10244, 10760, 12805, 13988, 15760, 17485, 20488, 21520, 25610, 27976, 34970, 40976, 51220, 52993, 55952, 69940, 102440, 105986, 139880, 204880, 211972, 264965, 279760, 423944, 529930, 688909, 847888, 1059860, 1377818, 2119720, 2755636, 3444545, 4239440, 5511272, 6889090, 11022544, 13778180, 27556360, 55112720]

約数ペア:

[(1, 55112720), (2, 27556360), (4, 13778180), (5, 11022544), (8, 6889090), (10, 5511272), (13, 4239440), (16, 3444545), (20, 2755636), (26, 2119720), (40, 1377818), (52, 1059860), (65, 847888), (80, 688909), (104, 529930), (130, 423944), (197, 279760), (208, 264965), (260, 211972), (269, 204880), (394, 139880), (520, 105986), (538, 102440), (788, 69940), (985, 55952), (1040, 52993), (1076, 51220), (1345, 40976), (1576, 34970), (1970, 27976), (2152, 25610), (2561, 21520), (2690, 20488), (3152, 17485), (3497, 15760), (3940, 13988), (4304, 12805), (5122, 10760), (5380, 10244), (6994, 7880)]