890229860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79627}}^1$

素因数の和:79692

約数の個数: 48

約数和(自身を含む): 2060135616

約数和(自身を除く): 1169905756

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, 79627, 159254, 318508, 398135, 796270, 1035151, 1592540, 2070302, 3423961, 4140604, 5175755, 6847922, 10351510, 13695844, 17119805, 20703020, 34239610, 44511493, 68479220, 89022986, 178045972, 222557465, 445114930, 890229860]

約数ペア:

[(1, 890229860), (2, 445114930), (4, 222557465), (5, 178045972), (10, 89022986), (13, 68479220), (20, 44511493), (26, 34239610), (43, 20703020), (52, 17119805), (65, 13695844), (86, 10351510), (130, 6847922), (172, 5175755), (215, 4140604), (260, 3423961), (430, 2070302), (559, 1592540), (860, 1035151), (1118, 796270), (2236, 398135), (2795, 318508), (5590, 159254), (11180, 79627)]