19959950

素因数分解:

$2^1\times 5^2\times {\mathrm{617}}^1\times {\mathrm{647}}^1$

素因数の和:1276

約数の個数: 24

約数和(自身を含む): 37243152

約数和(自身を除く): 17283202

約数列:

[1, 2, 5, 10, 25, 50, 617, 647, 1234, 1294, 3085, 3235, 6170, 6470, 15425, 16175, 30850, 32350, 399199, 798398, 1995995, 3991990, 9979975, 19959950]

約数ペア:

[(1, 19959950), (2, 9979975), (5, 3991990), (10, 1995995), (25, 798398), (50, 399199), (617, 32350), (647, 30850), (1234, 16175), (1294, 15425), (3085, 6470), (3235, 6170)]