19101778865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9479791}}^1$

素因数の和:9479840

約数の個数: 16

約数和(自身を含む): 25481680896

約数和(自身を除く): 6379902031

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 9479791, 47398955, 123237283, 293873521, 616186415, 1469367605, 3820355773, 19101778865]

約数ペア:

[(1, 19101778865), (5, 3820355773), (13, 1469367605), (31, 616186415), (65, 293873521), (155, 123237283), (403, 47398955), (2015, 9479791)]