19306780

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7369}}^1$

素因数の和:7509

約数の個数: 24

約数和(自身を含む): 40859280

約数和(自身を除く): 21552500

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7369, 14738, 29476, 36845, 73690, 147380, 965339, 1930678, 3861356, 4826695, 9653390, 19306780]

約数ペア:

[(1, 19306780), (2, 9653390), (4, 4826695), (5, 3861356), (10, 1930678), (20, 965339), (131, 147380), (262, 73690), (524, 36845), (655, 29476), (1310, 14738), (2620, 7369)]