2781885

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 4815360

約数和(自身を除く): 2033475

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 227, 285, 645, 681, 817, 1135, 2451, 3405, 4085, 4313, 9761, 12255, 12939, 21565, 29283, 48805, 64695, 146415, 185459, 556377, 927295, 2781885]

約数ペア:

[(1, 2781885), (3, 927295), (5, 556377), (15, 185459), (19, 146415), (43, 64695), (57, 48805), (95, 29283), (129, 21565), (215, 12939), (227, 12255), (285, 9761), (645, 4313), (681, 4085), (817, 3405), (1135, 2451)]