12651980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 29272320

約数和(自身を除く): 16620340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 439, 524, 655, 878, 1310, 1441, 1756, 2195, 2620, 2882, 4390, 4829, 5764, 7205, 8780, 9658, 14410, 19316, 24145, 28820, 48290, 57509, 96580, 115018, 230036, 287545, 575090, 632599, 1150180, 1265198, 2530396, 3162995, 6325990, 12651980]

約数ペア:

[(1, 12651980), (2, 6325990), (4, 3162995), (5, 2530396), (10, 1265198), (11, 1150180), (20, 632599), (22, 575090), (44, 287545), (55, 230036), (110, 115018), (131, 96580), (220, 57509), (262, 48290), (439, 28820), (524, 24145), (655, 19316), (878, 14410), (1310, 9658), (1441, 8780), (1756, 7205), (2195, 5764), (2620, 4829), (2882, 4390)]