16957520

素因数分解:

$2^4\times 5^1\times {\mathrm{211969}}^1$

素因数の和:211982

約数の個数: 20

約数和(自身を含む): 39426420

約数和(自身を除く): 22468900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211969, 423938, 847876, 1059845, 1695752, 2119690, 3391504, 4239380, 8478760, 16957520]

約数ペア:

[(1, 16957520), (2, 8478760), (4, 4239380), (5, 3391504), (8, 2119690), (10, 1695752), (16, 1059845), (20, 847876), (40, 423938), (80, 211969)]