78803920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75773}}^1$

素因数の和:75799

約数の個数: 40

約数和(自身を含む): 197315496

約数和(自身を除く): 118511576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 75773, 151546, 303092, 378865, 606184, 757730, 985049, 1212368, 1515460, 1970098, 3030920, 3940196, 4925245, 6061840, 7880392, 9850490, 15760784, 19700980, 39401960, 78803920]

約数ペア:

[(1, 78803920), (2, 39401960), (4, 19700980), (5, 15760784), (8, 9850490), (10, 7880392), (13, 6061840), (16, 4925245), (20, 3940196), (26, 3030920), (40, 1970098), (52, 1515460), (65, 1212368), (80, 985049), (104, 757730), (130, 606184), (208, 378865), (260, 303092), (520, 151546), (1040, 75773)]