1718802020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{153739}}^1$

素因数の和:153804

約数の個数: 48

約数和(自身を含む): 3977561280

約数和(自身を除く): 2258759260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 153739, 307478, 614956, 768695, 1537390, 1998607, 3074780, 3997214, 6610777, 7994428, 9993035, 13221554, 19986070, 26443108, 33053885, 39972140, 66107770, 85940101, 132215540, 171880202, 343760404, 429700505, 859401010, 1718802020]

約数ペア:

[(1, 1718802020), (2, 859401010), (4, 429700505), (5, 343760404), (10, 171880202), (13, 132215540), (20, 85940101), (26, 66107770), (43, 39972140), (52, 33053885), (65, 26443108), (86, 19986070), (130, 13221554), (172, 9993035), (215, 7994428), (260, 6610777), (430, 3997214), (559, 3074780), (860, 1998607), (1118, 1537390), (2236, 768695), (2795, 614956), (5590, 307478), (11180, 153739)]