145340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:78

約数の個数: 36

約数和(自身を含む): 338184

約数和(自身を除く): 192844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 169, 172, 215, 260, 338, 430, 559, 676, 845, 860, 1118, 1690, 2236, 2795, 3380, 5590, 7267, 11180, 14534, 29068, 36335, 72670, 145340]

約数ペア:

[(1, 145340), (2, 72670), (4, 36335), (5, 29068), (10, 14534), (13, 11180), (20, 7267), (26, 5590), (43, 3380), (52, 2795), (65, 2236), (86, 1690), (130, 1118), (169, 860), (172, 845), (215, 676), (260, 559), (338, 430)]