28259270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 61145280

約数和(自身を除く): 32886010

約数列:

[1, 2, 5, 10, 13, 17, 19, 26, 34, 38, 65, 85, 95, 130, 170, 190, 221, 247, 323, 442, 494, 646, 673, 1105, 1235, 1346, 1615, 2210, 2470, 3230, 3365, 4199, 6730, 8398, 8749, 11441, 12787, 17498, 20995, 22882, 25574, 41990, 43745, 57205, 63935, 87490, 114410, 127870, 148733, 166231, 217379, 297466, 332462, 434758, 743665, 831155, 1086895, 1487330, 1662310, 2173790, 2825927, 5651854, 14129635, 28259270]

約数ペア:

[(1, 28259270), (2, 14129635), (5, 5651854), (10, 2825927), (13, 2173790), (17, 1662310), (19, 1487330), (26, 1086895), (34, 831155), (38, 743665), (65, 434758), (85, 332462), (95, 297466), (130, 217379), (170, 166231), (190, 148733), (221, 127870), (247, 114410), (323, 87490), (442, 63935), (494, 57205), (646, 43745), (673, 41990), (1105, 25574), (1235, 22882), (1346, 20995), (1615, 17498), (2210, 12787), (2470, 11441), (3230, 8749), (3365, 8398), (4199, 6730)]