2661235

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 3405600

約数和(自身を除く): 744365

約数列:

[1, 5, 19, 95, 109, 257, 545, 1285, 2071, 4883, 10355, 24415, 28013, 140065, 532247, 2661235]

約数ペア:

[(1, 2661235), (5, 532247), (19, 140065), (95, 28013), (109, 24415), (257, 10355), (545, 4883), (1285, 2071)]