1645065

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 2882880

約数和(自身を除く): 1237815

約数列:

[1, 3, 5, 9, 15, 45, 139, 263, 417, 695, 789, 1251, 1315, 2085, 2367, 3945, 6255, 11835, 36557, 109671, 182785, 329013, 548355, 1645065]

約数ペア:

[(1, 1645065), (3, 548355), (5, 329013), (9, 182785), (15, 109671), (45, 36557), (139, 11835), (263, 6255), (417, 3945), (695, 2367), (789, 2085), (1251, 1315)]