542321845

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2054

約数の個数: 48

約数和(自身を含む): 785816640

約数和(自身を除く): 243494795

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 169, 221, 247, 323, 845, 1105, 1235, 1615, 1987, 2873, 3211, 4199, 9935, 14365, 16055, 20995, 25831, 33779, 37753, 54587, 129155, 168895, 188765, 272935, 335803, 439127, 490789, 641801, 1679015, 2195635, 2453945, 3209005, 5708651, 6380257, 8343413, 28543255, 31901285, 41717065, 108464369, 542321845]

約数ペア:

[(1, 542321845), (5, 108464369), (13, 41717065), (17, 31901285), (19, 28543255), (65, 8343413), (85, 6380257), (95, 5708651), (169, 3209005), (221, 2453945), (247, 2195635), (323, 1679015), (845, 641801), (1105, 490789), (1235, 439127), (1615, 335803), (1987, 272935), (2873, 188765), (3211, 168895), (4199, 129155), (9935, 54587), (14365, 37753), (16055, 33779), (20995, 25831)]