12928390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 11021690

約数列:

[1, 2, 5, 10, 71, 131, 139, 142, 262, 278, 355, 655, 695, 710, 1310, 1390, 9301, 9869, 18209, 18602, 19738, 36418, 46505, 49345, 91045, 93010, 98690, 182090, 1292839, 2585678, 6464195, 12928390]

約数ペア:

[(1, 12928390), (2, 6464195), (5, 2585678), (10, 1292839), (71, 182090), (131, 98690), (139, 93010), (142, 91045), (262, 49345), (278, 46505), (355, 36418), (655, 19738), (695, 18602), (710, 18209), (1310, 9869), (1390, 9301)]