78147215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 105255936

約数和(自身を除く): 27108721

約数列:

[1, 5, 17, 23, 71, 85, 115, 355, 391, 563, 1207, 1633, 1955, 2815, 6035, 8165, 9571, 12949, 27761, 39973, 47855, 64745, 138805, 199865, 220133, 679541, 919379, 1100665, 3397705, 4596895, 15629443, 78147215]

約数ペア:

[(1, 78147215), (5, 15629443), (17, 4596895), (23, 3397705), (71, 1100665), (85, 919379), (115, 679541), (355, 220133), (391, 199865), (563, 138805), (1207, 64745), (1633, 47855), (1955, 39973), (2815, 27761), (6035, 12949), (8165, 9571)]