78776360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{769}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 192099600

約数和(自身を除く): 113323240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 260, 394, 520, 769, 788, 985, 1538, 1576, 1970, 2561, 3076, 3845, 3940, 5122, 6152, 7690, 7880, 9997, 10244, 12805, 15380, 19994, 20488, 25610, 30760, 39988, 49985, 51220, 79976, 99970, 102440, 151493, 199940, 302986, 399880, 605972, 757465, 1211944, 1514930, 1969409, 3029860, 3938818, 6059720, 7877636, 9847045, 15755272, 19694090, 39388180, 78776360]

約数ペア:

[(1, 78776360), (2, 39388180), (4, 19694090), (5, 15755272), (8, 9847045), (10, 7877636), (13, 6059720), (20, 3938818), (26, 3029860), (40, 1969409), (52, 1514930), (65, 1211944), (104, 757465), (130, 605972), (197, 399880), (260, 302986), (394, 199940), (520, 151493), (769, 102440), (788, 99970), (985, 79976), (1538, 51220), (1576, 49985), (1970, 39988), (2561, 30760), (3076, 25610), (3845, 20488), (3940, 19994), (5122, 15380), (6152, 12805), (7690, 10244), (7880, 9997)]