16949480

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{659}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 38253600

約数和(自身を除く): 21304120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 659, 1286, 1318, 2572, 2636, 3215, 3295, 5144, 5272, 6430, 6590, 12860, 13180, 25720, 26360, 423737, 847474, 1694948, 2118685, 3389896, 4237370, 8474740, 16949480]

約数ペア:

[(1, 16949480), (2, 8474740), (4, 4237370), (5, 3389896), (8, 2118685), (10, 1694948), (20, 847474), (40, 423737), (643, 26360), (659, 25720), (1286, 13180), (1318, 12860), (2572, 6590), (2636, 6430), (3215, 5272), (3295, 5144)]